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DEPARTMENT OF THE INTERIOR 

[ITED STATES GEOLOGICAL SURVEY 

GEORGE OTIS SMITH, Dieectok 



WATER-StrppiiY Paper 373 



WATER RESOURCES OF HAWAII 



1913 



BY 



G. K. LARRISON 





WASHINGTON 

GOVEKNMENT FEINTING OFFICE 
1915 




Pass Gr S 8 3 g; 

Book , H 4- ft S g . 



10 



DEPARTMENT OF THE INTERIOR 

UNITED STATES GEOLOGICAL SURVEY 

GEORGE OTIS SMITH, Dikectok 



Water- Supply Paper 373 



WATER RESOURCES OF HAWAII 



1913 




c^ 



BY 



G. K. LARRISON 




WASHINGTON 

GOVERNMENT PRINTING OFFICE 



19 15 



C-y. 






^ ^ 



D, of Do 
DEC 7 1915 



LC Control Number 



tmp96 026353 



So ^ CONTENTS. 

^'^ 

Page. 

Authority for investigations 7 

Cooperation 8 

Scope of work 9 

Field methods of measuring stream flow 9 

Base data 9 

Weir measurements 10 

Velocity-area method 11 

Definition of terms 15 

Convenient equivalents 16 

Office methods of computing and studying the discharge and run-off 17 

Explanation of tables 20 

Accuracy of field data and computed results 21 

Division of work 22 

Gaging stations maintained in Hawaii 22 

Gaging-station records 27 

Island of Kauai 27 

Waimea River near Waimea 27 

Kawaikoi Stream near Waimea 28 

Waialae River near Waimea 29 

Waimea ditch near Waimea 31 

Makaweli River near Waimea 31 

Halekua Stream near Waimea 32 

Olokele ditch at tunnel No. 12 near Makaweli 33 

Olokele ditch at weir near Makaweli 35 

Poowaiomahaihai ditch near Waimea 36 

Hanapepe River at Koula near Eleele 37 

Hiloa ditch at Hanapepe Falls near Eleele 38 

Hanapepe ditch at Koula near Eleele 40 

Hanapepe ditch at weir near Hanapepe 41 

Huleia River near LOiue 43 

Hanamaulu River at Kapaia near Lihue 45 

South Fork of Wailua River above Waiehu Falls near Lihue 46 

Hanamaulu ditch near Lihue 48 

Lihue ditch near Lihue 49 

North Fork of Wailua River near Lihue 50 

Kanaha ditch near Lihue 51 

East Branch of North Fork of Wailua River near Lihue 53 

Konohiki Stream at Makakualele weir (mauka) near Kealia 55 

South Fork of Kaehulua Stream at Wainamunamu weir near Kealia. . 56 

Kaehulua Stream at Kuhinoa weir near Kealia 57 

North Fork of Kaehulua Stream at Kainahola weir, near Kealia 58 

Kapaa River near Kealia 59 

Akulikuli Spring near Kealia 60 

Kapahi ditch at Kapahi, near Kealia 61 

Kaneha ditch near Kealia 62 

Anahola River above dam at Kiokala, near Kealia 63 

3 



4 CONTENTS. 

Gaging-station records — Continued. 

Island of Kauai — Continued. Page. 

Anahola ditch at Kiokala, near Kealia 64 

KaliMwai River near Kilauea 65 

Hanalei River near Hanalei 67 

Kuna ditch near Hanalei 68 

Wainiha River (east and west channels) near Wainiha 69 

Miscellaneous measurements 73 

Island of Oahu 74 

Kalihi Stream at Kioi pool, near Honolulu 74 

Nuuanu Stream at Luakaha weir, in upper Nuuanu Valley, near 

Honolulu 76 

Nuuanu Stream below reservoir No. 2, wasteway, near Honolulu 75 

Lulumaha ditch at upper Nuuanu reservoir near Honolulu 76 

Pauoa Stream at upper Pauoa Valley, near Honolulu 78 

Kahuawai Spring at upper Pauoa Valley, near Honolulu 79 

Manoa Stream at upper Manoa Valley, near Honolulu 80 

Manoa Stream at College of Hawaii, near Honolulu 80 

East Branch of Manoa Stream at upper Manoa Valley, near Honolulu. 82 

West Branch of Manoa Stream at upper Manoa Valley, near Honolulu. 84 

Waiomao Stream at upper Palolo Valley, near Honolulu 85 

Waimanalo ditch below main reservoir, near Waimanalo 86 

Makawao ditch at Makawao flume, near Waimanalo 88 

Makawao Stream in Kailua Valley, near Kailua 89 

Kaimi Stream in Kailua Valley, near Kailua 91 

Kamakalepo Stream in Kailua Valley, near Kailua 93 

Pohakea Stream in Kailua Valley, near Kailua 94 

South Branch of Kahanaiki Stream in Kailua Valley, near Kailua. . . 96 

North Branch of Kahanaiki Stream in Kailua Valley, near Kailua. . . 96 

Waiahole Stream at Manianiaula, near Waikane 97 

Right Branch of North Fork of Kaukonahua Stream near Wahiawa. . 99 

Left Branch of North Fork of Kaukonahua Stream near Wahiawa 100 

South Fork of Kaukonahua Stream near Wahiawa 102 

Miscellaneous measurements 103 

Island of Maui 104 

lao Stream near Wailuku 104 

Maniania ditch near Wailuku 105 

South Waiehu Stream near Wailuku 106 

South Waiehu ditch near Wailuku 107 

North Waiehu Stream near Wailuku ., = 109 

Waihee Stream near Waihee 110 

Spreckels ditch near Waihee 112 

Kahakuloa Stream at Kahakuloa, near Waihee 113 

Kahakuloa Stream near Honokahau 113 

Honokahau Stream near Honokahau 115 

Honokahau ditch at intake near Honokahau 116 

Honolua Stream near Honokahau 117 

Honokawai Stream near Lahaina 118 

Honokawai ditch near Lahaina 119 

Kahoma ditch at weir near Lahaina 121 

Lahainaluna Stream near Lahaina 122 

Lahainaluna ditch near Lahaina 124 

Kauaula ditch near Lahaina 126 

Launiupoko Stream near Lahaina 127 



CONTENTS. 5 

Gaging-station records — Continued. 

Island of Maui — Continued. Page. 

Olowalu Stream near Olowalu 128 

Olowalu ditch No. 1 near Olowalu 129 

Waikapu Stream near Waikapu 131 

South Side Waikapu ditch near Waikapu 131 

Palolo ditch near Waikapu 132 

Haipuaena Stream (old station) near Huelo 134 

Haipuaena Stream (new station) near Huelo 134 

Puohakamoa Stream (old station) near Huelo 135 

Puohakamoa Stream (new station) near Huelo 136 

Alo Stream near Huelo 137 

Waikamoi Stream near Huelo 138 

Oopuola Stream near Huelo 139 

Spreckels ditch at gage No. 1, near Huelo 141 

Spreckels ditch at gage No. 2, near Huelo 141 

Spreckels ditch at gage No. 3, near Huelo 142 

Spreckels ditch at gage No. 4, near Huelo 142 

Spreckels ditch at gage No. 5, near Huelo 143 

Spreckels ditch at gage No. 6, near Huelo 143 

Spreckels ditch at gage No. 8, near Huelo 144 

NailiiUhaele Stream near Huelo 144 

Kailua Stream near Huelo ..'... ^ 145 

Oanui Stream near Huelo 146 

Hoolawanui Stream near Huelo 147 

Hoolawaliilii Stream near Huelo 148 

Honopou Stream near Huelo 149 

Miscellaneous measurements 151 

Island of Hawaii 152 

General conditions 152 

Hilo group 153 

Stations at 2,700-foot level 153 

Wailuku River near Hilo 166 

Honolii River at Kaiwiki near Hilo 167 

Hamakua group 168 

Hamakua ditch at main weir, Puualala, near Waimea 168 

New Hamakua ditch at main weir near Kukuihaele 169 

Kohala group 170 

Kohala ditch near Kohala 170 

Keheil^ ditch at Honokane Mauka, near North Kahala 173 

Miscellaneous measurements 174 

Rain gaging 174 

Index 187 



WATER RESOURCES OF HAWAII, 1913. 



By G. K. Larrison. 



AUTHORITY FOR INVESTIGATIONS. 

This volume contains results of measurements of tlie flow of cer- 
tain streams and ditches and rainfall records of the Territory of 
Hawaii made during the calendar year 1913. The investigations 
leading to the report were made by the United States Geological 
Survey in cooperation with the Territory of Hawaii, under the general 
sanction of the organic law of the Survey (Stat. L., vol. 20, p. 394), 
which contains the following paragraph: 

Provided, Thst this oflScer [the Director] shall have the direction of the geological 
survey and the classification of public lands and examination of the geological struc- 
tiu:e, mineral resomrces, and products of the national domain. 

As water is the most abundant and most valuable of the minerals, 
the investigation of water resources is authorized under the provision 
for examining mineral resources. The work has been supported since 
the fiscal year ending June 30, 1895, by appropriations in successive 
sundry civil bills passed by Congress under the following item: 

For gaging the streams and determining the water supply of the United States, and 
for the investigation of underground currents and artesian wells, and for the prepara- 
tion of reports upon the best methods of utilizing the water resources. 

The legislature of the Territory of Hawaii approved on March 22, 
1909, "An act to promote the conservation and development of the 
natural resources of the Territory," which provided in substance as 
follows: A special tax of 2 per cent shall be levied, assessed, and col- 
lected annually on all incomes in excess of $4,000; and all amounts 
so collected shall constitute a special fund to be expended only for 
the encouragement of immigration and the conservation of natural 
resources in the proportion of three-fourths for immigration and one- 
fourth for conservation. The conservation fund shall be used for the 
development, conservation, improvement, and utilization of the nat- 
ural resources, and shall be available for expenditure at such times 
and in such manner as a board of three persons appointed in accord- 
ance with section 80 of the organic act shall, with the approval of the 
governor, determine. 

7 



8 WATER EESOITECES OF HAWAH, 1913. 

An act of April 26, 1911, amended tlie original act so as to extend 
it until December 31, 1913. 

On April 4, 1913, the governor of the Territory of Hawaii approved 
the following acts providing (act 56) for the creation and maintenance 
of a division of hydrography under the board of agriculture and 
forestry, and (act 57) appropriating the revenues from water Hcenses 
for the use of the board of commissioners of agriculture and forestry 
toward forest protection and hydrographic surveying. 

Section 1 of act 56 reads: 

The board of agriculture and forestry is hereby authorized to create and maintain 
a division of hydrography for the investigation and determination of the water re- 
sources of the Territory by the gaging of streams and rainfall and other means, in 
cooperation with the United States Geological Survey or otherwise, and in fm-ther- 
ance thereof to take over and exercise the functions of the Territory in the conduct of 
the present hydrographic survey of the Territory. 

Section 2 provides that this act shall take effect on July 1, 1913. 
Section 1 of act 57 reads: 

All revenues derived from water licenses, issued by the Territory, during the period 
beginning July 1, 1913, and ending June 30, 1915, whether by way of rental? or other- 
wise, shall constitute and be held as a special fund in the treasury of the Territory 
to be disbursed on warrants of the auditor issued on approved vouchers of the presi- 
dent of the board of commissioners of agriculture and forestry. Such moneys shall be 
apportioned and applied from time to time by the board of commissioners of agri- 
cultm-e and forestry, acting with the approval of the governor, equally between the 
division of forestry and the division of hydrography to the following general purposes, 
and not otherwise: 

1. For the protection of forest reservations, established or set apart according to 
law, against damage by fire, animals, and otherwise by means of fences and any other 
means whatsoever, and for the expenditures of the division of forestry. 

2. For the development and maintenance of the hydrographic sm^ey throughout 
the Territory. 

Each voucher against said fund shall designate the general purpose for which it 
is drawn. 

Section 2 provides that this act also shall take effect on July 1, 1913. 
COOPERATION. 

Under the authority conferred by the Federal and Territorial 
legislation, the Director of the United States Geological Survey and 
the governor of the Territory of Hawaii entered into a cooperative 
agreement, dating from July 1, 1910, for "the gaging of streams and 
the determination of the water supply of the Territory of Hawaii." ^ 

The principal features of this agreement are : 

1, The United States Geological Survey assumes the responsibility 
of gathering, analyzing, and publishing the data. 

2. During the progress of the work all notes, maps, and data gath- 
ered as a result of field studies are at all times open to inspection by 

1 The United States Geological Survey is also cooperating with the Territory of Hawaii in mapping the 
several islands. The whole of the island of Kauai and a part of the island of Hawaii have been mapped. 



FIELD METHODS OF MEASUEHSTG STREAM FLOW. 9 

the representative of tlie Territory, and if they are not entirely satis- 
factory the agreement can be terminated. 

3. Accounts for payment of salaries, travel, and subsistence, sup- 
plies, or other expenses necessary to the completion of the work shall 
be rendered in the manner required by the laws and regulations of 
the contracting parties, and vouchers shall be preferred to either 
party for payment according as it may be convenient or according 
to the balance remaining in the respective allotments. 

4. The cost of publication is borne entirely by the Geological 
Survey. 

The Territory of Hawaii was represented in the cooperation by the 
board of conservation appointed by Gov. Walter F. Frear, and con- 
sisted of J. P. Cooke (chairman), J. W. Caldwell, and E. V. Wilcox, 
until June 30, 1913. After this date the Territory was represented by 
the board of commissioners of agriculture and forestry, consisting of 
W. M. Giffard (president and executive ofScer), A. Waterhouse, J. M. 
Dowsett, H. M. von Holt, and A. H. Rice. 

SCOPE OF WORK. 

The investigations of stream flow in the Territory are not complete, 
nor do they include all the streams that might advantageously be 
studied. They include, however, as many of the streams and ditches 
on the four larger islands as the available appropriations would allow. 
It is essential that records of stream flow should be kept during a period 
of years long enough to determine within reasonable limits the range 
of flow from the maximum to the minimum. The length of such a 
period manifestly varies for different streams. Experience has shown 
that the records should be kept from 20 to 30 years. 

In the performance of this work an effort is made to reach the 
highest degree of precision possible with a rational expenditure of 
time and money. In aU engineering work there is a point beyond 
which refinement is needless and wasteful, and this statement applies 
with especial force to stream-measurement work in Hawaii. It has 
been found, however, that it is possible to obtain data which are 
sufficiently accurate, although many of those presented in this report 
are for periods too short to admit of definite conclusions. 

FIELD METHODS OF MEASURING STREAM FLOW. 

BASE DATA. 

In making plans for power, irrigation, municipal water supply, and 
other projects involving the use of water from surface streams itis 
necessary to have data from which both the total flow of the stream 
and its distribution from day to day throughout the year can be 
obtained. The data necessary for obtainmg such information are 



10 WATER RESOURCES OP HAW AH, 1913. 

daily gage heights, which give the fluctuations of rise and fall of the 
stream, and measurements of discharge at various stages, from which 
a rating curve and table can be prepared, giving the discharge for 
any stage. Such a rating is possible from the fact that so long as the 
conditions at the controlling point in the stream remain the same 
there will be approximately the same discharge for any given gage 
height. 

The determination of a discharge is termed a discharge measure- 
ment, and points at which discharge measurements are made and 
records of daily fluctuations of stage are kept for determining the 
daily flow are termed gaging stations. 

Gaging stations may be divided into two classes, known as weir 
stations and velooity-area stations. At weir stations the head of 
water on the crest of the weir is measured and the discharge com- 
puted by means of a formula. The discharge at velocity-area 
stations is obtained by measuring the velocity of the current and 
the area of the cross-section, the product of the two giving the dis- 
charge. 

The data presented in this paper were collected at both weir and 
velocity-area stations. 

WEIB MEASUREMENTS. 

Unquestionably a weir prOperly constructed and of a type for 
which accurate coefficients have been determined is one of the most 
convenient and reliable means of measuring small quantities of water. 
In practice, however, weirs rarely conform to the requirements 
imposed by the experimenter who derived the coefficients. If the 
crest of the weir is sharp and clean and sufficiently high above the 
bottom of the leading channel and the end contractions are complete 
and the velocity of approach is wanting, or negligibly small, andif 
the head on crest is measured at a distance back of the overfaU of at 
least the weir crest length, the Francis formula will give good results. 
On the other hand, if these essential conditions are not complied with, 
especially if the velocity of approach is considerable and the contrac- 
tions are imperfect, the Francis formula will not give accurate results. 
This is particularly true if the weir is improperly constructed and there 
is leakage around and under it, as is so frequently the case in practice. 

Observations made on various types of weirs in Hawaii show that 
of the weirs in use in the Territory not all are giving accurate results. 
If the error is known so that corrections can be made the trouble is 
largely mitigated, but faulty weir records are too often accepted with- 
out investigation as to their accuracy. 



FIELD METHODS OP MEASURING STEEAM FLOW. 11 

VELOCITY-AREA METHOD. 

The velocity-area metliod of measurement consists of determining 
the mean or average velocity of the water past a given cross-section 
area. The area of the cross section at right angles to the direction 
of flow is determined by soundings which are taken at such distances 
apart as will develop the contour of the stream bed. The depths are 
recorded and also their distances from some arbitrarily chosen initial 
point on one side of the stream. 

The method of making the soundings depends on the size and stage 
of the stream. On ditches and small streams, where the depths and 
velocities are not large, a graduated rod may be used to advantage; 
on large streams, which must be measured from bridges or cables, a 
lead weight and sounding line must be used. The weights are of 
different sizes — 6^, 10, or 15 pounds — according to the swiftness of 
the current, and are torpedo shaped, so as to offer as little resistance 
as possible to the moving water. 

On streams with beds which are permanent or nearly so a standard 
cross section is usually constructed from careful soundings and 
referred to the zero of the gage, so that the depths for any stage can 
be found by adding the gage height at that stage to the depths below 
the zero of the gage. This method is especially useful at high stages, 
when it is difficult to make accurate soundings. 

After the cross-section area of the stream has been measured by 
soundings and horizontal distances, the velocity is determined at a 
number of points. These measurements of velocity should be made 
at frequent intervals across the stream and close enough to take 
account of any abrupt change in the velocity. For convenience, the 
velocities are usually observed in the same verticals at which sound- 
ings are made. On some streams fairly good measurements of veloci- 
ties may be made by means of subsurface floats. This method is 
applicable, however, only to channels of uniform cross-section area 
over a considerable distance and is very unsatisfactory for use on 
natural streams Hke those of Hawaii.^ 

The velocity of flow is best determined by the current meter, which 
is a form of water wheel actuated by the current, and of such size and 
shape that it can easily be placed at any point in the stream. 

The new type of penta-recording current meter consists of six cups 
attached to a vertical shaft which revolves on a conical hardened- 
steel point when immersed in moving water. The revolutions are 
indicated electrically or acousticaUy, The rating, or relation between 
the velocity of moving water and the revolutions of the wheel, is 
determined for each meter by drawing it through still water for a 
given distance at different speeds and noting the number of revolu- 

i Further information regarding the float method is given in Water-Supply Paper 95 and in textbooks 
on stream flow. 



12 WATER KESOUBOES OF HAWAII, 1913. 

tions for each. run. From these data a rating table is prepared which 
gives the velocity in feet per second of moving water for any number 
of revolutions in a given time interval. The ratio of revolutions per 
second to velocity of flow in feet per second is very nearly a constant 
for all speeds and is approximately 0.45. 

Three classes of methods of measuring velocity with current meters 
are in general use — multiple-point, single-point, and integration. 

The two principal multiple-point methods in general use are the 
vertical velocity curve and 0.2 and 0.8 depth. 

In the vertical velocity-curve method a series of velocity determi- 
nations are made in each vertical at regular intervals, usually about 
10 to 20 per cent of the depth apart. By plotting these velocities as 
abscissas and their depths as ordinates and drawing a smooth eurve 
among the resulting points, the vertical velocity curve is developed. 
This curve shows graphically the magnitude and changes in velocity 
from the surface to the bottom of the stream. The mean velocity 
in the vertical is then obtained by dividing the area bounded by this 
velocity curve and its axis by the depth. This method of obtaining 
the mean velocity in the vertical is probably the best known, but 
on account of the length of time required to make a complete meas- 
urement its use is largely limited to the determination of coefficients 
for purposes of comparison. 

In the second multiple-point method the meter is held successively 
at 0.2 and 0.8 depth, and the mean of the velocities at these two 
points is taken as the mean velocity for that vertical. On the assump- 
tion that the vertical velocity curve is a common parabola with hori- 
zontal axis, the mean of velocities at 0.22 and 0.79 depth wiU give 
(closely) the mean velocity in the vertical. Actual observations 
under a wide range of conditions show that this multiple-point 
method gives the mean velocity very closely for open-water condi- 
tions and that in a completed measurement it seldom varies as much 
as 1 per cent from the value given by the vertical velocity-curve 
method. It is very extensively used in the regular practice of the 
United States Geological Survey. 

The single-point method consists in holding the meter either at 
the depth of the thread of mean velocity or at an arbitrary depth 
for which the coefficient for reducing to mean velocity has been 
determined or must be assumed. 

Extensive experiments by means of vertical velocity curves show 
that the thread of mean velocity generally occurs between 0.5 and 
0.7 total depth. In general practice the thread of mean velocity is 
considered to be at 0.6 depth, and at this point the meter is held in 
most of the measiu'ements made by the single-point method. A 
large number of vertical velocity curve measurements, taken on 
many streams and under varying conditions, show that the average 
coefficient for reducing the velocity obtained at 0.6 depth to mean 



FIELD METHODS OF MEASURING STREAM FLOW. 13 

velocity is practically unity. The variation of the coeflB.cient from 
unity in individual cases is, however, greater than in the 0.2 and 0.8 
method and the general results are not as satisfactory. 

In the other principal single-point method the meter is held near 
the surface, usually 1 foot below, or low enough to be out of the effect 
of the wind of other disturbing influences. This is known as the sub- 
surface method. The coefficient for reducing the velocity taken at 
the subsurface to the mean has been found to be in general from 
about 0.85 to 0.95, depending on the stage, velocity, and channel 
conditions. The higher the stage the larger the coefficient. This 
method is especially adapted for flood measurements, or for measure- 
ments when the velocity is so great that the meter can not be kept 
in the correct position for the other methods. 

The vertical integration method consists in "moving the meter at a 
slow but uniform speed from the surface to the bottom and back again 
to the surface and noting the number of revolutions and the time 
taken in the operation. This method has the advantage that the 
velocity at each point of the vertical is measured twice. It is useful 
as a check on the point methods. In using the Price meter great 
care should be taken that the vertical movement of the meter is not 
rapid enough to vitiate the accuracy of the resulting velocity deter- 
mination. 

In practical work on rough streams, such as exist in Hawaii, the 
meter should be held at 0.6 depth for depths of 1 foot or less. For 
greater depths the meter should be held at two points in the vertical, 
0.2 and 0.8 from the surface. 

When the mean velocities in the different verticals have been 
found, the average of two adjacent means is taken as the mean 
velocity for that individual section. The area of the section is 
computed by multiplying the width of the section by the mean depth. 
The discharge of each section is then the product of the area multiplied 
by the mean velocity, and the total discharge of the stream results 
from summing up the discharge of the individual sections. In prac- 
tice the work is tabulated in such a way as to render the computation 
very simple.^ 

Current meter measurements are not practicable where there are 
eddies, cross currents, swirls, or passages for the water underneath 
stones. It is usually possible, however, to improve the channel by 
removing bowlders and rocks, so that a satisfactory measuring sec- 
tion may be obtained, even on rough, steep streams such as exist in 
Hawaii. 

Three kinds of velocity-area gaging stations are in general use in 
Hawaii, according to the means provided for making the observations 
of depth and velocity. They are wading, bridge, and cable stations. 

1 For a discussion of methods of computing the discharge of a stream see Engineering News, June 25, 
1908. 



14 WATER BESOXJECES OP HAWAII, 1913. 

A wading station is one at which measurements are made only 
by wading; that is, no means exist for getting above the water at 
any stage except by wading. Such stations are usually on ditches 
or wide, shallow streams, which do not fluctuate greatly in flow. 
Frequently, however, measmements are made at low stages by wad- 
ing, even though other means exist for making measurements at 
higher stages. 

A bridge station is one at which the meter is used from a bridge. 
In some places highway or other bridges are available from which 
to make measurements, but generally they are not at the right place 
on the stream. Special bridges are then built. 

A cable station is one at which measurements are made from a 
cable spanning the stream. Cable stations are used on large streams, 
such as Hanapepe, Wailua, and Hanalei rivers on the island of Kauai, 
and Wailuku River on the island of Hawaii. The cable supports the 
car from which a man works above the water. Distances are marked 
off on the cable itself or on a small auxiliary cable stretched taut 
above it. 

A suitable place for a gaging station having been selected, a staff 
gage is set in the edge of the stream, either vertical or inchned, but 
graduated into tenths, half-tenths, or hundredths of feet vertically. 
The gage is securely fastened to rocks or trees to prevent displace- 
ment by floods and is so placed that the zero, or reference datum, is 
well below extreme low water. The datum is also referred to a per- 
manent bench mark as an additional precaution. A water-stage 
recorder is then installed or an observer is engaged to record the 
heights of water morning and evening, and the mean of the two 
readings is used as the mean gage height for the day. Owing to the 
rapid rise and fall of most of the streams in Hawaii, two gage-height 
readings a day will not as a rule give a true mean for the 24 hours. 
For this reason, and also owing to the fact that many of the gaging 
stations are necessarily situated in the mountains at points remote 
from all habitations and difficult of access, it has generally been 
found necessary to use water-stage recorders. These instruments are 
of various types, some requiring weekly visits and others operating 
for a month without attention. 

The essential features of water-stage recorders comprise a float 
free to rise and fall with fluctuations of the water surface, a device for 
transferring the motion of the float to the record sheet (either directly 
or through a reducing mechanism), the recording device, and the clock. 
The instruments may be designed for any range of stage. Those 
used by the United States Geological Survey in Hawaii are designed 
for ranges up to as high as 36 feet, but so far those having a 20-foot 
range have been found to be sufficient for any stage. 



WATER RESOURCES OF HAWAII, 1913. 15 

DEFINITION OF TERMS. 

The volume of water flowing in a stream — the "run-off" or "dis- 
charge" — is expressed in various terms, each of which has become 
associated more or less definitely with a certain class of work. These 
terms may be divided into two groups: (1) Those which represent a 
rate of flow, as "second-feet"; "gallons per minute," "gallons per 24 
hours," "miner's inches," and "run-off in second-feet per square 
mile," and (2) those which represent the actual quantity of water, as 
"run-off in depth in inches," "million gallons," and "acre-feet." 
They may be defined as follows: 

"Second-foot" is an abbreviation for cubic foot per second, and is 
the unit for the rate of discharge of water flowing in a stream 1 square 
foot in cross section at a rate of 1 foot per second. It is generaUy 
adopted as the fundamental unit in the measurement of flowing water 
and is the "natural" unit, as the foot and the second are the units 
used in making the physical determinations. Other units may be 
computed from this by the use of factors given in the table of equiv- 
alents. 

"Gallons per minute" is generally used in connection with pumping 
and city water supply, the United States gallon of 231 cubic inches 
being the unit of quantity and 1 minute the unit of time. 

The "miner's inch" is the unit for the rate of discharge of water 
that passes through an orifice 1 inch square under a head which varies 
locally. It is commonly used by miners and irrigators throughout the 
West, and is defined by statutes in each State in which it is used. 

"Second-feet per square mile" is the average number of cubic feet 
of water flowing per second from each square mile of area drained, on 
the assumption that the run-off is distributed uniformly both as re- 
gards time and area. 

"Run-off in inches" is the depth to which the drainage area would 
be covered if all the water flowing from it in a given period were con- 
served and uniformly distributed on the surface. It is used for com- 
paring run-off with rainfall, which is usually expressed in depth in 
inches. 

An "acre-foot" is equivalent to 43,560 cubic feet, and is the quantity 
required to cover an acre to the depth of 1 foot. The term is com- 
monly used in connection with storage for irrigation. 

In the Territory of Hawaii a unit commonly used in connection with 
the measurement of water is the "million gaUons. " This is used with 
two meanings — -(1) to indicate a rats of flow and (2) to express an 
actual quantity of water. In the former sense "million gallons per 24 
hours" is inferred, 1,000,000 gallons being taken as the luiit of quan- 
tity and 24 hours as the unit of time. With this meaning the term is 
generally used in connection with pumping and irrigation. In the 



16 



WATER EESOURCES OP HAWAII^ 1913. 



latter sense ''million gallons" as an absolute quantity is used in the 
measurement of storage capacities of reservoirs. 

The following convenient approximate relations exist between 
second-feet, million gallons per 24 hours, and acre-feet: 1 second- 
foot flowing 24 hours equals about 2 acre-feet; 1,000,000 gallons 
equals about 3 acre-feet; and 1 second-foot equals approximately 
two-thirds million gallons per 24 hours. 

''Man's water" is an irrigator's terms also in common use in Hawaii. 
It signifies the amount of water that one irrigator can properly handle 
in the field. It varies greatly, being dependent upon the condition of 
the furrows, the age of the crop, and the skill and individuality of the 
irrigator. 

CONVENIENT EQUIVALENTS. 

The following is a list of convenient equivalents for use in hydraulic 
computations : 

Table for converting discharge in second-feet into run-off in acre-feet. 



Discharge 
(second- 


Run-ofl (acre-feet). 












feet). 


Iday. 


28 days. 


29 days. 


30 da3^. 


31 days. 


1 


1.983 


55.54 


57.52 


59.50 


61.49 


2 


3.967 


111.1 


115.0 


119.0 


123.0 


3 


5.950 


166.6 


172.6 


178.5 


184.5 


4 


7.934 


222.1 


230.1 


238.0 


246.0 


5 


9.917 


277.7 


287.6 


297.5 


307.4 


6 


11.90 


333.2 


345.1 


357.0 


368.9 


7 


13.88 


388.8 


402.6 


416.5 


430.4 


8 


15.87 


444.3 


460.2 


476.0 


491.9 


9 


17.85 


499.8 


517.7 


535.5 


553.4 



Note. — For part of a month multiply values for one day by the number of days. 

1 second-foot equals 7.48 United States gallons per second; equals 448.8 gallons per 
minute; equals 646,317 gallons for one day. 

1 second-foot for one year (365 days) covers 1 square mile 1.131 feet or 13.572 inches 
deep. 

1 second-foot for one year (365 days) equals 31,536,000 cubic feet. 

1 second-foot for one year (365 days) equals 724 acre-feet. 

1 second-foot equals about 1 acre-inch per hour. 

1 second-foot for one. day covers 1 square mile 0.03719 inch deep. 

1 second-foot for one day equals 1.PS3 acre-feet. 

1,000,000 United States gallons per'day equals 1.55 second-feet. 

1,000,000 United States gallons equal 3.07 acre-feet. 

1,000,000 cubic feet equals 22.95 acre-feet. 

1 acre-foot equals 325,850 gallons. 

1 inch deep on 1 square mile equals 2,323,200 cubic feet. 

1 inch deep on 1 square mile equals 0.0737 second-foot per year. 

1 foot equals 0.3048 meter. 

1 mile equals 1.60935 kilometers. 

1 mile equals 5,280 feet. 

1 acre equals 0.4047 hectare. 

1 acre equals 43,560 square feet. 



OFFICE METHODS. 17 

1 acre equals 209 feet square, nearly. 

1 square mile equals 2.59 square kilometers. 

1 cubic foot equals 0.0283 cubic meter. 

1 cubic foot equals 7.48 gallons. 

1 cubic foot of "water weighs 62.5 pounds. 

1 cubic meter per minute equals 0.5886 second-foot. 

1 horsepower equals 550 foot-pounds per second. 

1 horsepower equals 76.0 kilogram-meters per second. 

1 horsepower equals 746 watts. 

1 horsepower equals 1 second-foot falling 8.80 feet. 

IJ horsepower equals about 1 kilowatt. 

, , . ,, Sec.-ft.Xfall infeet ^ , 
To calculate water power quickly: tt =net horsepower on water 

wheel realizing 80 per cent of theoretical power. 

OFFICE METHODS OF COMPUTING AND STUDYING 
DISCHARGE AND RUN- OFF. 

At the end of each year the field or base data for current-meter 
gaging stations, consisting of water-stage record sheets, daily gage 
heights, discharge measurements, and notes from observers' books 
are assembled. The measurements are plotted on cross-section paper 
and rating curves are drawn wherever feasible. The rating tables 
prepared from these curves are then appUed to the tables of daily 
gage heights to obtain the daily discharge, and from these appUca- 
tions the tables of monthly discharge and run-off are computed. 

Rating curves are drawn and studied with special reference to the 
class of channels which they represent. The discharge measure- 
ments for all classes of stations, when plotted with gage heights in 
feet as ordinates and discharges in second-feet as abscissas, define 
rating curves which are generally more or less parabohc in form. 
For many stations curves of area in square feet and mean velocity 
in feet per second are also constructed to the same scale of ordinates 
as the discharge curve. These are used mainly to extend the dis- 
charge curves beyond the limits of the plotted discharge measure- 
ments, to check the form of the discharge curve, and to determine 
and eliminate erroneous measurements. 

For every rating table the following assumptions are made for the 
period of application of the table: (a) That the discharge is a func- 
tion of and increases gradually with the stage; (h) that the discharge 
is the same whenever the stream is at a given stage, and hence such 
changes in conditions of flow as may have occurred during the period 
of application are either compensating or neghgible, except that the 
rating, as stated in the footnote of each table, is not applicable for 
periods during which the channel was obstructed; (c) that the 
increased and decreased discharge due to change of slope on rising 
and falling stages is either negligible or compensating. 

97764°— WSP 373—15 -2 



18 WATER EESOTJECES OF HAWAII, 1913. 

As already stated; the gaging stations may be divided into several 
classes, as indicated in the following paragraphs : 

The stations of class 1 represent the most favorable conditions for 
an accurate rating and are also the most economical to maixitain. 
The bed of the stream is usually composed of rock and is not subject 
to the deposit of sediment and loose material. This class includes 
also many stations located in a pool below which is a permanent 
rocky riffle that controls the flow like a weir. Provided the control 
is sufficiently high and close to the gage to prevent cut and fill at the 
gaging point from materiaUy affecting the slope of the water surface, 
the gage height wiU for all practical purposes be a true index of the 
discharge. Discharge measurements made at such stations usually 
plot within 2 or 3 per cent of the mean discharge curve, and the 
rating developed from that curve represents a very high degree of 
accuracy. 

Class 2 comprises mainly stations on rough, mountainous streams 
with steep slopes. The beds of such streams are, as a rule, com- 
paratively permanent during low and medium stages, and when the 
flow is sufficiently weU defined by an adequate number of discharge 
measurements before and after each flood the stations of this class 
give nearly as good results as those of class 1. As it is seldom pos- 
sible to make measurements covering the time of change at flood 
stage, the assumption is often made that the curves before and after 
the flood converged to a common point at the highest gage height 
recorded during the flood. Hence the only uncertain period occurs 
during the period of actual change in conditions of flow. 

Class 3 includes those stations where the stream bed is of a shifting 
character, or the controlling section below the gage frequently 
changes owing to cutting out by the current and the filling in of sand, 
gravel, and drift. In some cases in Hawaii changes are caused by 
the growth of vegetation in the stream bed. No absolute rule 
can be laid down for stations of this class. Each rating curve must 
be constructed mainly on the basis of the measurements of the cur- 
rent year, the engineer being guided largely by the history of the 
station and the following general law: If all measurements ever made 
at a station of this class are plotted on cross-section paper, they wiU 
define a mean curve which may be called a standard curve. It has 
been found in practice that if after a change caused by high stage a 
relatively constant condition of flow occurs at medium and low 
stages, all measurements made after the change will plot on a smooth 
curve which is practically parallel to the standard curve with respect 
to ordinates or gage heights. This law of the paraUeUsm of rating 
curves is the fundamental basis of all ratings and estimates at stations 
with semipermanent and shifting channels. It is not absolutely cor- 
rect, but, with few exceptions, answers all the practical requirements 



OFFICE METHODS. 19 

of estimates made at low and medium, stages after a change at a high 
stage. This law appears to hold equally true whether the change 
occurs at the measurmg section or at some controlling point below. 
The change is, of course, fundamentally due to change in the chan- 
nel caused by cut or fill, or both, at or near the measuring section. 
For all except small streams the changes in section usually occur at 
the bottom. The following simple but typical examples illustrate 
this law: 

(a) If 0.5 foot of planking were to be nailed on the bottom of a well- 
rated wooden flume of rectangular section, there would result, other 
conditions of flow being equal, new curves of discharge, area, and 
velocity, each plotting 0.5 foot above the original curves when 
referred to the original gage. In other words, this condition would 
be analogous to a uniform fill or cut in a river channel which either 
reduces or increases aU three values of discharge, area, and velocity 
for any gage height. In practice, however, such ideal conditions 
rarely exist. 

(6) In the case of a cut or fill at the measuring section, there is a 
marked tendency toward decrease or increase, respectively, of the 
velocity. In other words, the velocity has a compensating effect, and 
if the compensation is exact at aU stages the discharge at a given 
stage will be the same under both the new and the old conditions. 

(c) In the case of uniform change along the crest of a weir or 
rocky control, the area curve wiU remain the same as before the 
change, and it can be shown that here again the change in velocity 
curve is such that it will produce a new discharge curve essentially 
parallel to the original discharge curve with respect to their ordinates. 

Of course, in actual practice such simple changes of section do not 
occur. The changes are complicated and lack uniformity, a cut at 
one place being largely offset by a fill at another, and vice versa. 
If these changes are very radical and involve large percentages of 
the total area — as, for example, on small streams — there may result 
a wide departure from the law of paralleHsm of rating curves. In 
compHcated changes of section the corresponding changes in velocity 
which tend to produce a new parallel discharge curve may interfere 
with each other materially, causing eddies, boils, backwater, and 
radical changes in slope. In such extreme conditions, however, the 
measuring section would more properly fall imder class 4 and would 
require very frequent measurements of discharge. Special stress is 
laid on the fact that in the lack of other data to the contrary the 
utiHzation of this law wiU yield the most probable results. 

Slight changes at low or medium stages of an oscillating character 
are usually averaged by a mean curve drawn among them parallel 
to the standard curve, and if the individual measurements do not 



20 "WATER RESOXJRCES OF HAWAH, 1913. 

vary more than 5 per cent from the rating cm-ve the results are 
considered good for stations of this class. 

Class 4 comprises stations on streams that have soft, muddy, or 
sandy beds. Good results can be obtained from such sections only 
by frequent discharge measurements, the frequency ranging from a 
measurement every two or three weeks to a measurement every day, 
according to the rate of diurnal change in conditions of flow. These 
measurements are plotted and a mean or standard curve drawn 
among them. It is assumed that there is a different rating curve 
for every day of the year and that this rating is parallel to the stand- 
ard curve with respect to their ordinates. On the day of a measure- 
ment the rating curve for that day passes through that measurement. 
For days between successive measurements it is assumed that the 
rate of change is uniform, and hence the ratings for the intervening 
days are equally spaced between the ratings passing through the two 
measurements. This method must be modified or abandoned 
altogether under special conditions. Personal judgment and a 
knowledge of the conditions involved can alone dictate the course 
to pursue in such cases. 

The computations have, as a rule, been carried to three significant 
figures. Computation machines and the 20-inch shde rule have 
been generally used. All computations are carefully checked. 

After the computations have been completed they are entered in 
tables and carefully studied and intercompared to eliminate or 
account for all gross errors so far as possible. Missing periods are 
filled in, so far as feasible, by means of comparison with records for 
adjacent streams. The attempt is made to complete years or periods 
of discharge, thus ehminating fragmentary and disjointed records. 
Full notes accompanying such estimates follow the daily and monthly 
discharge tables. 

EXPLANATION OF TABLES. 

For each regular current-meter gaging station are given in general 
the following data: Description of station, list of discharge measure- 
ments, table of daily discharge, table of monthly and yearly discharge, 
and run-off in acre-feet. 

All rates of flow are expressed as second-feet, because distances and 
depths are measured in feet, and velocities in feet per second. The 
flow is thus obtained in cubic feet per second, or more briefly in 
'/second-feet." The term ''nulhon gallons per 24 hours" is not used 
except in a few tables where data have been furnished in these units 
by private cooperations. ''Milhon gallons per 24 hours" is not a 
primary but a derived unit. To convert second-feet into million 
gallons per 24 hours multiply by 0.646. 



ACCUEACY OP FIELD DATA. 21 

In addition to statements regarding the location and installation 
of current-meter stations, the descriptions give information in regard 
to any conditions which may affect the constancy of the relation of 
gage height to discharge, covering such points as shifting channels 
and backwater; also information regarding diversions which decrease 
the total flow at the measuring section. Statements are also made 
regarding the accuracy and reliabihty of the data. 

The discharge-measurement table gives the results of the discharge 
measurements made during the year, including the date, name of 
hydrographer, gage height, and discharge in second-feet. 

The discharge measurements and gage heights are the base data 
from which rating tables, daily discharge tables, and monthly dis- 
charge tables are computed. 

The table of daily discharge gives the discharge in second-feet cor- 
responding to the observed gage height as determined from the rating 
table, the number of significant figures used varying with the size 
of the discharge. 

In the table of monthly discharge the column headed "Maximum" 
gives the mean flow, as determined from the rating table, for the day 
when the mean gage height was highest. As the gage height is the 
mean for the day, it does not indicate correctly the stage when the 
water surface was at crest height and the corresponding discharge 
was consequently larger than given in the maximum column. Like- 
wise in the column of "Minimum" the quantity given is the mean 
flow for the day when the mean gage height was lowest. The column 
headed "Mean" gives the average flow in cubic feet for each second 
during the month. The "run-off in acre-feet" given in the column 
under that head is computed from the mean discharge in second-feet. 

ACCURACY OF FIELD DATA AND COMPUTED RESULTS. 

The accuracy of stream-flow data depends (1) on permanence of 
the relation between discharge and stage, and (2) on the accuracy 
of observations of stage, measurements of discharge, and interpreta- 
tion of data. 

The accuracy column in the monthly discharge table does not 
apply to the maximum or minimum nor to any individual day, but 
to the monthly mean. It is based on the accuracy of the rating, the 
probable rehabiUty of the observer, the number of gage readings per 
day, the range of the fluctuation in stage, and knowledge of local 
conditions. In this column, A indicates that the mean monthly 
flow is probably accurate within 5 per cent; B, within 10 per cent; 
C, within 15 per cent; D, within 25 per cent. Special conditions are 
covered by footnotes. 

It should be borne in mind that the observations in each succeeding 
year may be expected to throw new light on data already collected 
and pubHshed. 



22 WATER EESOUECES OF HAWAH, 1913. 

DIVISION OF WORK. 

On account of the isolation of the different islands of the Territory 

an engineer or employee was assigned to take charge of the field work 

on each of the four largest islands, with temporary headquarters on 

those islands. 

Persons in charge of field work. 



Island. 


In charge. 


Headquarters. 


Oahu 


G. K. Larrison, district engineer 


Honolulu (permanent). 
Do. 




J. C. Dort, assistant engineer 


Kauai 


W. V. Hardy, field assistant 


Waimea (temporary). 
Wailuku (temporary). 
Hilo a. (temporary). 


Maui . 


C. T. Bailey, assistant engineer 




E. 0. Christiansen, assistant engineer 







a Discontinued July 18, 1913. 

The ratings, applications, and computations were made by J. C. 
Dort, C. T. Bailey, W. V. Hardy, E. O. Christiansen, Howard Kimble, 
H. A. R. Austin, E. E. Goo, G. R. White, John Kaheaku, S. W. Dort, 
H. M. Kennedy, and R. M. S. Goo. The report was edited by Mrs. 
B. D. Wood. 

GAGING STATIONS MAINTAINED IN HAWAII. 

The following list comprises the gaging stations maintained in 
Hawaii by the United States Geological Survey and cooperative 
parties. The stations are arranged by stream basins and appear in 
systematic order for the several islands, tributaries of main, streams 
being indicated by indention. The date refers to the years or parts 
of years for which records are available. A dash following the date 
indicates that the station was being maintained December 31, 1913. 

KAUAI ISLAND. 

Waimea River near Waimea, 1910- 
Poomau River: 

Kawaikoi Stream near Waimea, 1909- 

Waiakoali Stream near Waimea, 1909-1912. 
Mohihi Stream near Waimea, 1909-1912. 
Waialae River near Waimea, 1910- 

Kekaha ditch, at Weir, Camp No. 1, near Waimea, 1910-1912. 
Kekaha ditch at flume No. 3, near Waimea, 1910-1912. 
Kekaha ditch, at siphon, near Waimea, 1910-1912. 
Kekaha ditch at tunnel No. 12 weir, near Waimea, 1910-1912. 
Waimea ditch near Waimea, 1911-1913. 
Kamenehune ditch near Waimea, 1911-12. 
Makaweli River near Waimea, 1911- 

Halekua Stream near Waimea, 1912-13. 
Olokele River: 

Olokele ditch at tunnel No. 12, near Makaweli, 1904- 
Olokele ditch near Makaweli, 1912- 
Poowaiomahalhai ditch near Waimea, 1911-1913. 



GAGING STATIOITS. 23 

Hanapepe River above Hanapepe Falls, near Eleele, 1911-12. 
Hanapepe River at Koula, near Eleele, 1910- 

Hiloa ditch at Hanapepe Falls, near Eleele, 1911- 

East Branch Hanapape River below Hanapepe Falls, near Eleele, 1911-12. 

Hanapepe ditch below Hanapepe Falls, near Eleele, 1911-12. 

Hanapepe ditch at Koula, near Eleele, 1910- 

Hanapepe ditch at weir, near Hanapepe, 1910- 
Huleia River near Lihue, 1912- 
Hanamaulu River at Kapaia, near Lihue, 1911- 
Wailua River: 

South Fork of Wailua River at siphon, near Lihue, 1910-11. 

South Fork of Wailua River above Waiehu Falls, near Lihue, 1911- 
Hanamaulu ditch near Lihue, 1910- 
Lihue ditch near Lihue, 1910- 

North Fork of Wailua River near Lihue, 1910- 
Kanaha ditch near Lihue, 1910- 

East Branch of North Fork of Wailua River, near Lihue, 1912- 
Uhau lole Stream at 750-foot elevation, near Lihue, 1912. 
Keahua Stream at 750-foot elevation, near Lihue, 1912. 
Kawi Stream at 750-foot elevation, near Lihue, 1912. 
Konohiki Stream at Makakualele welr (mauka), near Kapaa, 1911- 
Kaehulua Stream at Kuhinoa (mule stable) weir, near Kapaa, 1911-1913. 

South Fork of Kaehulua Stream at Wainamuamu weir, near Kapaa, 1911-12. 

North Fork of Kaehulua Stream at Wainamuamu weir, near Kapaa, 1911- 
Kapaa River, near Kealia, 1910- 

AkulikuU. Spring near Kealia, 1911-1913. 

Kapahi ditch at Kapahi, near Kealia, 1909- 

Tunnel ditch at Kapahi, near Kapaa, 1909-1911. 

Kapaa ditch at Kapahi, near Kapaa, 1909-1911. 

Pipe ditch at Kapahi, near Kapaa, 1909-1911. 
Kealia Stream: 

Kaneha ditch near Kealia, 1909- 
Anahola River at 1,140-foot elevation, near Kealia, 1912. 
Anahola River above dam at Kiokala, near Kealia, 1910. 1912- 
Anahola River at Kiokala dam, near Kealia, 1910-1912. 

Anahola ditch at Kiokala, near Kealia, 1909- 

Anahola ditch at Makai weir, near Kealia, 1909-1911. 
Kalihiwai River near Kilauea, 1912- 
Hanalei River near Hanalei, 1911- 

China ditch near Hanalei, 1911-12. 

Kuna ditch near Hanalei, 1912-13. 
Lumahai River near Wainiha, 1912. 
Wainiha River, East Channel, near Wainiha, 1912- 
Wainiha River, West Channel, near Wainiha, 1911- 

Waiaiha canal at intake, near Wainiha, 1910-1912. 

Wainiha canal at tunnel No. 18, near Wainiha, 1911. 

Wainiha canal at taihace, near Wainiha, 1911. 

OAHU ISLAND. 

Kalihi Stream at Kioi pool near Honolulu, 1913- 

Nuuanu Stream at Luakaha weir in upper Nuuanu Valley, near Honolulu, 1903, 

1910-13. 
Nuuanu Stream below Reservoir No. 2 wasteway, near Honolulu, 1913- 



24 WATER BESOUECES OP HAWAH, 1913. 

Nuuanu Stream at KuaMni Street, near Honolulu, 1911-12. 

Lulumaha ditch at upper Nuuanu Reservoir, near Honolulu, 1911-1913. 
Pauoa Stream at upper Pauoa Valley, near Honolulu, 1911- 

Kahuawai Spring at upper Pauoa Valley, near Honolulu, 1912- 
Manoa Stream at upper Manoa Valley, near Honolulu, 1910-1913. 
Manoa Stream at College of Hawaii, near Honolulu, 1909- 

West Branch of Manoa Stream at upper Manoa Valley, near Honolulu, 1913- 

East Branch of Manoa Stream at upper Manoa Valley, near Honolulu, 1913- 
Palolo Stream. 

Pukele Stream at Mahoe springs, near Honolulu, 1912- 

Waiomao Stream at upper Palolo Valley, near Honolulu, 1911-13. 

Waiomao Stream above Pukele, near Honolulu, 1911-12. 
Waimanalo ditch below main reservoir, near Waimanalo, 1912-13. 
Pump ditch near Waimanalo, 1912. 

Makawao ditch at Makawao flume, near Waimanalo, 1912- 
Kailua Stream near Kailua, 1912- 

Makawao Stream in KaUua Valley, near Kailua, 1912- 

Kaimi Stream in Kailua Valley, near Kailua, 1912- 

Kamakalepo Stream in Kailua Valley, near Kailua, 1912- 

Pohakea Stream in Kailua Valley, near Kailua, 1912- 
Kahanaiki Stream in Kailua Valley, near Kailua, 1912. 

South Branch Kahanaiki Stream in Kailua Valley, near Kailua, 1913- 

North Branch Kahanaiki Stream in Kailua Valley, near Kailua, 1913- 

Kahanaiki ditch in Kailua Valley, near Kailua, 1912-13. 
Waiahole Stream at Manianiaula, near Waikane, 1911- 
Waiahole Stream at Waiahole, near Waikane, 1911-12. 

Waihi Stream, near Waikane, 1911. 

Halona Stream, near Waikane, 1911. 

Waianu Stream, near Waikane, 1911. 
Waikane Stream near Waikane, 1911-12. 
Punaluu Stream near Hauula, 1906-7. 
Kaluanui Stream near Hauula, 1906-7. 
Kaipapau Stream near Hauula, 1906-7. 
Kaukonahua Stream: 

North Fork of Kaukonahua Stream near Wahiawa, 1911. 

Right Branch of North Fork of Kaukonahua Stream near Wahiawa, 1913- 
Left Branch of North Fork of Kaukonahua Stream near Wahiawa, 1913- 

South Fork of Kaukonahua Stream near Wahiawa, 1911, 1913- 

Wahiawa Reservoir ditch near Wahaiwa, 1910-11. 

MAUI ISLAND. 

West Maul, 
lao Stream near Wailuku, 1910- 

Maniania ditch near Wailuku, 1909-1913. 
Waiehu Stream: 

South Waiehu Stream near Wailuku, 1910- 

South Waiehu ditch near Wailuku, 1912- 
North Waiehu Stream near Wailuku, 1912- 

North Waiehu ditch near Wailuku, 1910-11. 
Waihee Stream near Waihee, 1910-1912, 1913— 
Waihee canal near Waihee, 1910-1912. 
Waihee canal at weir, near Wailuku, 1911-12. 
Spreckels ditch near Waihee, 1910-1913. 
Spreckels ditch at Waiale weir, near Wailviku, 1910-11. 



GAGING STATIONS. 25 

Kahakuloa Stream at Kahakuloa, near Waihee, 1912-13. 
Kaliakuloa Stream near Honokahau, 1913- 
Honokahau Stream near Honokaliau, 1913- 

Honokahau ditch at intake, near Honokahau, 1907-1913. 

Honokahau ditch, above Honolua Stream, near Honokahau, 1910-11. 

Honoki^u ditch, at Honokawai weir, near Lahaina, 1910-1912. 
Honolua Stream at Honolua ranch, 1911. 
Honolua S tream near Honokahau, 1913- 

Honolua ditch near Honokahau, 1911-12. 
Honokawai Stream near Lahaina, 1911; 1912- 
Honokawai Stream at weir No. 1, near Lahaina, 1901. 

Honokawai ditch near Lahaina, 1912- 
Kahoma Stream near Lahaina, 1911-12. 
Kahoma Stream at weir No. 1, near Lahaina, 1901. 
'Kahoma Stream at weir No. 2, near Lahaina, 1901. 

Kahoma ditch at weir, near Lahaina, 1911- 
Lahainaluna Stream near Lahaina, 1911- ' 

Lahainaluna weir No. 1 near Lahaina, 1901. 

Lahainaluna weir No. 2 near Lahaina, 1901. 

Lahainahma ditch near Lahaina, 1913- 
Kauaula Stream near Lahaina, 1912. 
Kauaula Stream at weir No. 3, near Lahaina, 1901. 

Kauaula ditch near Lahaina, 1911- 

Kauaula Stream, North Fork, at weir No. 1, near Lahaina, 1901. 

Kauaula Stream, South Fork, at weir No. 2, near Lahaina, 1901. 
Launiupoko Stream near Lahaina, 1911- 
Olowalu Stream near Olowalu, 1913. 
Olowalu ditch No. 1 near Olowalu, 1911- 
Ukumehame Stream near Olowalu, 1911-12. 
Waikapu Stream near Waikapu, 1910- 

Palolo (Everett) ditch near Waikapu, 1910- -, 

South Side Waikapu ditch near Waikapu, 1910- 

East Maul. 
Koolau Ditch region: 

Koolau ditch near Keanae, 1910-1912. 

Koolau ditch at Alo division weir, near Huelo, 1908-1913 . 
Spreckels ditch region: 

Haipuaena Stream near Huelo, 1910-. 

Puohakamoa Stream near Huelo, 1910-. 

Alo Stream near Huelo, 1910-. 

Waikamoi Stream near Huelo, 1910-. 

Oopuola Stream near Huelo, 1910-. 

Spreckels ditch at station No. 1, near Huelo, 1910-1913. 

Spreckels ditch at station No. 2, near Huelo, 1911-1913. 

Spreckels ditch at station No. 3, near Huelo, 1910-1913. 

Spreckels ditch at station No. 4, near Huelo, 1910-1913. 

Spreckels ditch at station No. 5, near Huelo, 1911-1913. 

Spreckels ditch at station No. 6, near Huelo, 1911-1913. 

Spreckels ditch at station No. 7, near Huelo, 1911-12. 

Spreckels ditch at station No. 8, near Huelo, 1911-1913. 
Center ditch region : 

Center ditch near Huelo, 1910-1912. 



26 WATER EESOURCES OF HAWAH, 1913. 

Hamakua ditcli region: 

NailiilLhaele Stream near Huelo, 1910-1912; 1913- 

Kailua Stream near Huelo, 1910-1912; 1913- 

Oanui Stream near Huelo, 1910-11; 1913- 

Hoolawaliilii Stream near Huelo, 1911- 

Hoolawanui Stream near Huelo, 1911- 

Honopou Stream near Huelo, 1910- 

Halehaku Stream at dam, near Huelo, 1910-11. 

Halehaku Stream weir near Huelo, 1910-1912. 

Opana Stream near Huelo, 1910-1912. 

Opana ditcli near Huelo, 1910-1912. 

New Hamakua ditcli at Nailiilihaele weir, near Huelo, 1910-1912. 

New Hamakua ditcli at Halehaku weir, near Huelo, 1910-1912. 

New Hamakua ditcli at station No. 1, near Huelo, 1912. 

New Hamakua ditcli at station No. 2, near Huelo, 1912. 

New Hamakua ditch at station No. 3, near Huelo, 1912. 

New Hamakua ditch at station No. 4, near Huelo, 1912. 

New Hamakua ditch at station No. 5, near Huelo, 1912. 

Old Hamakua ditch at Opana weir, near Huelo, 1910-1912. 

Kaluanui ditch at Puuomalei, near Hamakuapoko, 1910-1912. 

Lowrie ditch at Opana weir, near Huelo, 1910-1912. 

Haiku ditch at Peahi weir, near Huelo, 1910-1912. * 

HAWAII ISLAND. 

Hilo group: 

81 stations at 2,700 feet elevation, in forest back of Hilo, 1911-1913. 
Wailuku River near HUo, 1911-1913. 
Honolii River at Kaiwiki, near Hilo, 1911-1913. 
Honolii ditch at Kaiwiki, near Hilo, 1911. 
Kawainui River at Kawainui, near Pepeekeo, 1911-12. 
4 stations at Piihonua, near Hilo, 1912. 
Hamakua group: 

Waipio River below Koiawe, near Waipio, 1911-12. 
Waipio River below Waima, near Waipio, 1911-12. 
Waipio River at 360 feet elevation, near Waipio, 1901-2. 

New Hamakua ditch at Waima Stream, near Waipio, 1912. 
New Hamakua ditch at main weir, near Kukiuhaele, 1910- 
Hamakua ditch at main weir, at Puualala, Waimea, 1913. 
Kawainui Branch of Waipio River, near Waipio, 1911-12. 
Kawainui Stream at 2,120 feet elevation, near Waipio, 1901-2. 
Kawainui Stream at 1,435 feet elevation, near Waipio, 1901-2. 
Kawainui Stream at 775 feet elevation, near Waipio, 1901-2. 

Branch No. 3 of Kawainui Stream at 1,700 feet elevation, near Waipio, 

1901-2. 
Branch No. 2 of Kawainui Stream at 1,405 feet elevation, near Waipio, 

1901-2. 
Branch No. 1 of Kawainui Stream at 1,380 feet elevation, near Waipio, 
1901-2. 
Alakahi Stream at 1,200 feet elevation, near Waipio, 1901-2. 
Alakahi Stream at 730 feet elevation, near Waipio, 1901-2. 
Koiawe Stream at 1,120 feet elevation, near Waipio, 1901-2. 
Koiawe Stream at 610 feet elevation, near Waipio, 1901-2. 
Waima Stream at 790 feet elevation, near Waipio, 1901-2. 
Waima Stream at 385 feet elevation, near Waipio, 1901-2. 



ISLAND OP KAUAI. 



27 



Koliala group: 

Honokane Stream: 

East Brancli of Honokane Stream at 1,300 feet elevation, near Honokane, 1901. 
East Brancli of Honokane Stream at 770 feet elevation, near Honokane, 1901. 
West Brancli of Honokane Stream at 1,370 feet elevation, near Honokane, 1901. 
West Brancli of Honokane Stream at 775 feet elevation, near Honokane, 1901. 
Kohala ditch near Koliala, 1901-1913. 
Kehana ditch at Honokane Mauka, near North Kohala, 1912-13. 

GAGING- STATION RECORDS. 

ISLAND OP KAUAI. 

WAIMEA RIVER NEAR WAIMEA, KAUAI. 

Location. — ^About 2 miles north of Waimea, 250 feet above ford. 

Records available. — July 9, 1910, to December 31, 1913. 

Drainage area. — 58 square miles. 

Gage. — Vertical and inclined staff. 

C ontr ol. — Shifting . 

Discharge measurements. — ^Made from wire suspension bridge or by wading. 

Diversion. — Greater part of low-water flow diverted by irrigation ditches above 

station. 
Accuracy. — ^Records good except for November arid December, when fair results were 

obtained. 

Daily discharge, in second-feet, of Waimea River near Waimea, Kauai, for 191S. 



Day. 



Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


3.2 


6.6 


3.2 


0.2 


12 


1.0 


34 


1.6 


373 


0.6 


283 


192 


2.2 


2.2 


42 


2.2 


1.0 


397 


1.4 


38 


.6 


246 


47 


2.2 


3.2 


14 


2.2 


186 


184 


1.1 


24 


.6 


182 


7.3 


2.2 


2.2 


2.2 


1.6 


12 


572 


1.0 


20 


65 


6.6 


2.4 


2.2 


1.6 


1.0 


1.0 


4.1 


545 


1.7 


76 


60 


4.1 


2.2 


2.2 


.6 


1.0 


1.0 


4.1 


165 


1.6 


3.3 


57 


2.8 


2.2 


2.2 


.2 


1.0 


.2 


2.2 


151 


1.7 


1.5 


1.8 


2.2 


2.1 


212 


.2 


.2 


.2 


2.2 


20 


1.4 


1.2 


3,340 


2.1 


24 


5.4 


3.2 


4.1 


.2 


1.0 


2.2 


1.4 


1.0 


320 


2.1 


6.1 


2.2 


2.2 


8.3 


.1 


1,490 


2.1 


1.6 


.9 


277 


1.8 


186 


255 


1.0 


815 


.1 


357 


1.8 


1.6 


.8 


264 


6.6 


6.6 


432 


1.0 


540 


3,340 


102 


1.5 


1.5 


.8 


78 


10,000 


489 


2.2 


.2 


320 


2,190 


47 


47 


6.6 


.8 


74 


10,000 


4.8 


2.2 


.2 


226 


780 


10 


1,150 


2.2 


1.0 


69 


9,300 


6.6 


2.2 


.2 


320 


226 


4.1 


182 


17 


.9 


65 


9,000 


30 


2.2 


.2 


5.4 


47 


2.2 


67 


3.0 


.9 


53 


8,900 


4.4 


2.2 


1.0 


.1 


5.4 


2.2 




19 


1.0 


47 


397 


3.2 


2.2 


1.0 


1.0 


24 


2.2 


2.6 


14 


1.0 


42 


320 


2.6 


24 


.6 


1.0 


2.2 


3.3 


2.2 


2.1 


3.5 


41 


306 


441 


2.2 


.2 


.2 


2.2 


2.1 


81 


1.5 


3.2 


38 


300 


6.9 


6.6 


1.6 


255 


1.0 


1.7 


4.1 


1.6 


1.2 


36 


296 


5.8 


4.1 


1.0 


212 


1.0 


1.1 


3.3 


1.6 


2.8 


540 


286 


2.2 


2.2 


.2 


199 


.2 


1.0 


2.1 


1.4 


2.2 


1,310 


68 


2.1 


357 


1,940 


94 


.1 


3.2 


1.2 


1.6 


1.8 


320 


52 


.4 


111 


996 


47 


4.1 


1.7 


1.1 


.3.2 


1.7 


277 


49 


2.2 


30 


270 


27 


4.1 


115 


2.1 


1.8 


1.7 


258 


47 


2.2 


6.6 


47 


12 


2.2 


34 


2.2 


1.6 


640 


76 


42 


2.2 


2.2 


22 


1.0 


1.0 


21 


2.0 


1.5 


165 


72 


38 


2.2 




6.6 


.2 


1.0 


3.9 


1.7 


189 


158 


68 


.8 


2.1 




1.0 


.2 


1.0 


2.4 


1.8 


62 


29 


3.5 


.8 


140 




1.0 




1.0 




1.7 


174 




3.3 







Dec. 



1. 

2. 
3. 

4. 
5. 

6. 
7. 
8. 
9. 
10. 

11. 
12. 
13. 
14. 
15. 

16. 
17. 
18. 
19. 
20. 

21. 
22. 
23. 

24, 
25, 

26 
27 
28 
29 
30 
31 



0.6 
.4 
.4 
.2 
.2 

.2 
.2 
.1 
.1 
.1 



397 
255 
240 
226 

221 
8.0 
8.0 
8.3 
6.4 

6.4 
6.4 
5.8 
5.6 
5.4 

5.1 
4.6 
3.5 
2.8 
2.2 
1.6 



Note. — No discharge July 17. 



28 WATEK RESOTJECES OF HAW AH, 1913. 

Mcmthly discharge of Waimea River near Waimea, Kauai, for 1913. 



Month. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



Discharge in second-feet. 



Maximum. MinimnTn Mean, 



489 

432 

1,940 

815 

3,340 

1,490 

1,150 

189 

640 

3,340 

10,000 

397 



10,000 



(a) 



0.4 

2.2 

.2 

.1 

.1 

1.0 

1.0 

.8 
.6 
.8 
.1 



(a) 



52.6 
53.1 
50.5 

105 

215 
80.7 

117 
16.8 
51.9 

254 
1,670 
48.4 



225 



Run-ofl 
(total in 
acre-feet). 



3,230 
2,950 
3,110 
6,250 
13,200 
4,800 
7,190 
1,030 
3,090 
15,600 
99, 400 
2,980 



163,000 



Accu- 
racy, 



a Channel dry. 

KAWAIKOI STREAM NEAR WAIMEA, KAUAI. 

liOcation. — 8 miles northeast of Knudsen's mountain house, and about 27 miles north 

of Waimea by horse trail. 
Records available.— April 3, 1909, to December 31, 1913. 
Drainage area. — 4.1 square miles. 
Gage. — Barrett & Lawrence water-stage recorder. 
Control. — Probably permanent. 

Discharge measurements,— Made from a wire suspension bridge or by wading. 
Accuracy. — Records good. 

Discharge measurements of Kawailoi Stream near Waimea, Kauai, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Apr. 8 
May 5 




Feet. 
1.86 
1.80 
3.49 


Sec. ft. 
12.6 
8.44 
123 


Jime 5 
July 7 


D.E. Homer 


Feet. 

■ 2.28 

2.68 


Sec. ft. 
44.4 




W.V.Hardy 


50.3 


D E. Homer 













ISLAND OF KAUAI. 29 

Daily discharge, in second-feet, of Kawaihoi Stream near Waimea, Kauai, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 












13 
23 
20 
68 
23 

16 
16 
14 
13 
13 

13 
13 
13 
13 
14 

15 
14 
14 
12 
11 

12 
12 
12 
12 
12 

12 
12 
12 
14 
14 


14 
14 
13 
20 
24 

23 
47 
22 
17 
14 

13 
30 
114 
63 
22 

17 
15 
13 
18 
33 

20 
15 
13 
14 
16 

14 
12 
9 
9 
9 
9 


9 

8 
8 
7 
7 

7 
11 
20 
20 
12 

9 

18 
22 
39 
30 

98 
26 
18 
11 
9 

8 
7 

i 

18 

19 
18 
13 
22 
20 
36 


34 
25 
16 

8 
8 

8 
8 

8 
7 
7 

7 

9 

9 
14 
10 

8 

7 
30 
17 
10 

11 

14 
8 

4.5 
6 

5 

4.5 

5 

5 

4 


8 

7 

4.5 

4 

4 

4 

74 
82 
18 
13 

12 
10 

7 
7 
7 

6 
5 
5 
5 
5 

5 
5 

6.5 
12 

18 

12 
11 

7 

5 

4.5 

4.5 


4.5 
69 
55 
16 
12 

9 
82 
27 
24 
17 

80 
119 
68 
21 
15 

66 
109 

82 
190 

75 

31 

92 
152 
172 
100 

44 
31 
24 
28 
36 


26 


2 












20 


3 






10 
9 






31 


4 


18 
14 

14 
15 








80 


5 




9 

16 
23 
15 
12 
10 

63 
68 
53 
16 
14 

16 
55 
36 
15 
13 

11 
10 

8 
8 
8 

8 
8 
8 
8 
8 
8 


110 


6 








127 


7 


15 
32 






53 


8 






50 


9 








31 


10 










21 


11 










18 


12 










17 












16 


14 










15 


15 










15 












15 


17 










14 


18 










14 


19 










13 












12 


21 










11 


22 










11 


23 










11 


24 










10 


25. 










10 


26 










9 


27 










8 


28 










8 


29 










9 


30 










9 


31 








• 


11 















Note.— No records Jan. 1-3, Jan. 8 to Feb. 6, Feb. 9 to Mar. 2, and Mar. 5 to May 4. 

Monthly discharge of Kawaihoi Stream near Waimea, Kavni, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



May 4-31.. . 

June 

July 

August 

September. 
October . . . 
November. 
December. . 



34 
82 
190 
127 



7 
4 
4 
4.5 



19.5 
15.8 
22.1 
18.9 
10.6 
12.2 
61.7 
26.0 



1,040 

940 

1,360 

1,160 

631 

750 

3,670 

1,600 



The period. 



11,200 



WAIALAE KIVEE, NEAR WAIMEA, KAUAI. 

Location. — ^3 miles northeast of F. Gay's mountain house, and about 20 miles north- 
east of Waimea by horse trail. 
Records available.— August 1, 1910, to December 31, 1913. 
Drainage area. — 3.5 square miles. 
Gage. — Barrett & Lawrence water-stage recorder. 
Control. — Probaby permanent. 

Discharge raeasnrements. — Made from cable or by wading. 
Accuracy. — Records January to August, good; September to December, &ir. 



30 WATER EESOUECES OP HAWAH, 1913. 

Discharge measurements of Waialae River near Waimea, Kauai, in 1913. 



Date. 


Hydrographer. 


Gage 
heiglit. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Apr. H 


D. E. Homer 


Feet. 
1.56 
1.22 


Sec. ft. 
28.9 
8.83 


June 9 


D. E. Horner 


Feet. 
1.64 


Sec. -ft. 
35.9 


May 9 


do 











Daily discharge, in second-feet, of Waialae River near Waimea, Kauai, for 1913. 



Day. 



1 
2 
3 

4, 
5 

6 
7 
8 
9 
10 

11 
12 
13 
14 
15 

16 
17 
18 
19 
20 

21 
22 
23 
24 
25 

26 
27 
28 
29 
30 
31 



Jan. 



7.2 
7.2 
7.2 
7.2 
7.2 

7.2 
7.2 

43 

20 

50 

50 
16 
122 
34 

27 

32 

13 
9.5 
8.0 

7.6 

7.2 
6.9 
6.6 
6.0 

5.8 

5.8 
5.2 
4.2 
3.8 
3.5 
3.5 



Feb. 



3.5 
3.6 
3.9 
4.3 
4.3 

4.3 
5.5 

34 

16 

18 

36 

16 

11 
9.5 
9.1 

8.3 
8.0 
8.0 
8.0 
8.0 

8.0 
8.0 
7.2 

39 

20 

16 
11 
9.1 



Mar. 



8.0 
8.0 
7.6 
7.6 
7.6 

7.6 
7.2 
6.6 
5.5 
5.5 

4.2 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
4.0 
4.0 

7.2 

7.6 
17 
15 
54 
62 

41 

14 

11 
7.2 
6.3 
6.3 



Apr. 



39 
21 
11 
10 
7.6 

6.9 
6.6 
6.3 
9.1 
24 

34 
20 
84 
51 
93 

30 
36 

44 
34 
20 

18 
16 
16 
16 
51 

28 
18 
18 

45 
41 



May. 



26 
23 
38 
21 
16 

15 
12 
11 

7.6 
7.2 

24 
100 
70 
29 
18 

17 
16 
16 
16 
13 

11 

10 
8.0 
7.6 
7.2 

7.2 
7.2 
7.2 
7.2 
7.2 
7.2 



June. 



7.2 
6.9 
8.3 

14 

11 

11 
11 

9.1 
8.7 
36 

41 
17 
15 
23 
12 

11 

8.3 
7.6 
7.2 

7.2 

7.2 
7.2 
6.9 
6.3 
6.3 

30 
17 

18 
14 



July. 



24 
50 
44 
39 
50 

31 
24 
24 
17 
11 

9.1 
8.0 
8.0 

14 

13 

9.9 
8.3 
8.0 
8.3 
8.3 

9.1 
7.6 
7.2 
7.2 

7.2 

7.2 
7.2 
7.2 
7.2 
7.2 
6.9 



Aug. 



6.9 
6.3 
6.0 
6.0 
5.5 

5.8 
6.3 
6.9 
7.2 
7.2 

7.2 
7.2 

10 

15 

17 

24 
17 
16 
10 
8.0 

7.6 
7.2 
7.2 
6.6 
6.9 



6.3 
17 



Sept. 



30 
41 
31 
13 
11 

11 
11 
10 

7.2 
7.2 

6.0 

5.8 
5.8 
5.8 
5.8 

5.8 
5.8 
5.8 
5.8 
5.8 

5.8 
5.5 
5.5 
5.2 
4.9 

4.3 
4.0 
6.0 
,5.5 
5.5 



Oct. 



5.5 
5.2 
4.3 
4.3 
4.3 

4.3 
5.8 
105 

26 

11 

10 
9.1 

57 
36 
26 

20 
15 
14 
26 
19 

16 
17 
31 
23 
30 

22 
28 
14 
13 
11 
8.0 



Nov. 



7.6 
8.0 

30 

11 



108 
122 
126 
24 
21 

23 
24 
17 
70 
63 

18 
25 
60 

58 
61 

43 
11 
18 
50 

72 



Dec. 



18 
11 
10 
13 
23 

48 

15 

10 
8.0 
8.0 

7.2 
7.2 
7.2 
6.3 
4.9 

4.3 
4.3 
5.5 
5.5 
5.5 

5.8 
5.2 
4.9 
4.9 
5:5 

5.5 
6.2 

5.8 
6.3 
6.3 
6.6 



Monthly discharge of Waialae River near Waimea, Kauai, for 1913. 



Month. 


Discharge in second-feet. 


Exm-ofl 
(total in 
acre-feet). 


Accu- 


Maximum. 


Mi'Tn'mnm, 


Mean. 


racy. 


January 


122 
39 
62 
93 

100 
41 
50 
68 
41 

105 

126 
48 


3.5 
3.5 
3.0 
6.3 
7.2 
6.3 
6.9 
5.5 
4.0 
4.3 
7.6 
4.3 


17.5 
12.1 
11.3 
28.5 
18.8 
13.2 
15.8 
12.2 

9.43 
20.0 
39.6 

9.16 


1,080 

672 

695 

1,700 

1,160 

786 

972 

750 

561 

1,230 

2,360 

563 


A. 


February 


A. 


March 


A. 


April 


A. 


May 


A. 


.Timpi 


A. 


July 


A. 


August 


A. 


September 


B. 


October 


B. 


November ... 


B. 


December 


B. 






The year 


126 


3.0 


17.3 


12,500 









ISLAND OF KAUAI. 



31 



WAIMEA DITCH NEAR WAIMEA, KAUAI. 

Location. — ^About 4 milea north of Waimea and 300 feet below intake. 

Records available. — November 4, 1911, to September 30, 1913. 

Gage. — ^Vertical staff. 

Control. — Fairly permanent. 

Discharge measurements. — ^Made from a footbridge. 

Diversion. — Ditch diverts part of flow of Waimea River. 

Accviracy. — Records poor. 

Monthly discharge of Waimea ditch near Waimea, Kauai, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February. . 

March 

April 

May 

Jime 

July 

August 

September. 



12.1 
15.3 
10.6 
27.5 
13.7 
16.1 
16.1 
15.3 
12.1 



1.9 
1.5 
1.0 
2.4 
3.2 
2.4 
1.5 
2.0 
1.7 



4.97 
4.21 
3.84 
7.93 
5.61 
6.25 
7.16 
4.73 
4.02 



The period. 



306 
234 
236 
472 
345 
372 
440 
291 
239 



2,940 



MAKAWELI RIVER NEAR WAIMEA, KAUAI. 

Location. — About 2 miles northeast of Waimea. Reached by wagon road up Maka- 

weli River. 
Records available. — October 6, 1911, to December 31, 1913. 
Drainage area. — 25.8 square miles. 
Gage. — Vertical staff. 
Control. — Probably slightly shifting. 

Discharge measurements. — Made from a wire suspension footbridge or by wading. 
Diversions. — Several above station. 
Accuracy. — Records fairly good except for November and December, when they 

were poor. 

The following discharge measurement was made by W. V. Hardy: 
April 30, 1913: Gage height, 4.46 feet; discharge, 195 second-feet. 



32 WATER EESOUECES OF HAWAII^ 1913. 

Daily discharge, in second-feet, of Makaweli River near Waimea, Kauai, for 1913. 



Day. 



Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


14 


15 


17 


55 


39 


6 


22 


10 


30 


24 


82 


14 


14 


17 


14 


9 


6 


24 


12 


26 


34 


80 


13 


14 


14 


12 


6 


226 


72 


11 


24 


25 


78 


3 


13 


11 


12 


84 


34 


47 


10 


24 


50 


80 


3 


13 


11 


8 


13 


14 


55 


10 


17 


44 


69 


17 


12 


11 


6 


19 


11 


23 


8 


16 


37 


70 


14 


10 


10 


6 


17 


6 


18 


8 


16 


35 


74 


10 


9 


10 


6 


8 


6 


17 


9 


16 


621 


74 


10 


8 


10 


55 


8 


6 


18 


8 


15 


320 


84 


3 


84 


10 


15 


6 


39 


18 


8 


14 


260 


93 


190 


32 


10 


10 


6 


17 


18 


7 


13 


82 


3,160 


26 


26 


10 


26 


1,280 


15 


18 


7 


13 


78 


1,920 


2,660 


20 


6 


383 


190 


15 


18 


7 


12 


72 


255 


84 


20 


6 


84 


39 


17 


19 


6 


12 


74 


166 


84 


19 


6 


126 


34 


17 


19 


6 


11 


148 


154 


143 


17 


6 


84 


20 


14 


18 


6 


10 


143 


118 


84 


17 


19 


34 


19 


11 


18 


7 


10 


190 


106 


26 


14 


9 


21 


14 


12 


18 


7 


11 


98 


135 


26 


14 


9 


20 


14 


10 


18 


7 


12 


93 


139 


14 


17 


13 


19 


12 


11 


18 


6 


11 


82 


143 


14 


26 


12 


19 


6 


10 


16 


6 


10 


80 


135 


14 


20 


36 


14 


6 


10 


15 


6 


10 


76 


139 


13 


20 


10 


10 


14 


9 


8 


7 


10 


78 


150 


13 


19 


44 


11 


10 


9 


7 


7 


11 


75 


154 


14 


84 


122 


14 


11 


9 


7 


6 


10 


■ 74 


5,170 


19 


55 


39 


14 


10 


8 


7 


6 


9 


72 


1,790 


17 


26 


10 


13 


10 


247 


8 


6 


4 


75 


289 


19 


20 


8 


6 


6 


104 


9 


6 


6 


80 


232 


19 




6 


122 


6 


16 


7 


6 


6 


80 


202 


17 




6 


84 


6 


58 


8 


70 


4 


81 


13 


14 




6 




6 




8 


74 




81 





Dec. 



1 
2 
3, 
4 
5. 

6 

7, 
8. 
9. 
10. 

11. 
12. 
13 
14 

15. 

16. 
17. 
18 
19. 
20 

21 
22. 
23. 
24 
25 

26 
27 
28 
29 
30 
31 



Monthly discharge of Makaweli River near Waimea, Kauai, for 1913. 



Month. 



Discliarge in second- feet. 



Maximum. MiTn'm nm 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 

Februarj- 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



2,660 

84 

122 

383 

1,280 

247 

72 

74 

30 

621 

5,170 

13 



5,170 



116 
23.5 
16.6 
43.4 
62.2 
32.4 
19.2 
11.6 
13.1 

108 

512 
7.81 



80.3 



7,130 

1,310 

1,020 

2,580 

3,820 

1,930 

1,180 

713 

780 

6,640 

30,500 

480 



58, 100 



HALEKUA STREAM NEAR WAIMEA, KAUAI. 

Location. — Station is reached from Waimea via Gay's mountain house by saddle 

horse; requires two days to make round trip. 
Records available. — October 11, 1912, to December 18, 1913. 
Drainage area. — 0.5 square mile. 
Gage. — Barrett & Lawrence water-stage recorder. 
Control. — Probably permanent. 
Discharge measurements.- — Made by wading. 
Accuracy. — Records fair. 
Cooperation. — Station maintained in cooperation with Hawaiian Sugar Co. 



ISLAND OF KAUAI. 33 

Discharge measurements of Halekua Stream near Waimea, Kauai, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


June 10 


D E Homer 


Feet. 
3.90 
3.36 


Sec.-ft. 
10.8 
.65 


Oct. 12 


W. V. Haxdy. . . 


Feet. 
3.50 


Sec.-ft. 
1.68 


Sept. 11 


do 











Daily discharge, in second-feet, of Halekua Stream near Waimea, Kauai, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 






2.2 
1.9 
1.9 
1.9 
1.9 

2.0 
2.0 
1.8 
1.6 
1.5 

1.4 
1.2 
' 1.1 
1.1 
1.2 

1.4 
1.7 
1.9 
2.5 
4.0 

3.3 
5.0 
7.5 
9.2 
12 

5.0 
4.3 
3.5 
3.2 
2.9 
9.2 


7.8 
4.3 
4.5 
3.3 
3.0 

2.7 
2.6 
3.3 
5.5 

5.8 

4.0 
3.5 

22 
8.2 

11 

4.2 
6.0 
5.0 
5.8 
3.3 

3.3 
2.9 
3.3 
4.0 

8.6 

3.5 
3.3 

7.0 
7.5 
6.0 


3.8 
9.2 
4.2 
3.5 
3.3 

3.3 
3.3 
3.0 
2.6 
2.6 

20 
19 
13 

4.2 
5.8 

3.8 
3.6 
4.2 
2.9 

2.7 

2.6 
2.6 
2.5 
2.6 
2.6 

2.5 
2.5 
2.5 
2.5 
2.5 
2.6 


2.2 
5.0 
4.7 
3.0 
2.9 








1.0 






2 
















3 
















19 


4 














1.5 

1.5 

2.3 
3.3 
5.0 
5.0 
35 

53 


1.4 


5 














3.0 


6 














2.7 


7 
















1.4 


8 










2.5 
2.7 
2.3 

2.0 
2.3 
2.7 
3.3 
3.0 

3.8 
1.9 
1.3 






1.2 


9 














.8 


10 














.8 


11 






8.9 
3.3 
4.2 
3.5 
3.3 

2.7 
2.5 
2.9 




0.8 

.8 
.8 




2.9 
2.0 
9.2 
2.7 
1.5 

1.4 
1.4 
2.2 
1.7 
1.3 

1.0 
1.7 
1.9 
1.5 
3.0 


.7 


12 




1.9 
1.9 
1.9 

1.8 

1.7 
1.7 
1.8 
1.8 
1.8 

1.9 
1.9 

4.2 
4.2 
3.0 

2.7 
2.6 
2.5 


.6 


13 




.6 


14 




.6 


15 




.6 


16 




.6 


17 




.6 


18 




.6 


19 






20 




. 


2.6 

2.6 
2.6 
2.3 
2.5 
2.5 

2.3 
2.2 
1.9 
2.0 
2.0 
1.9 










21 












22 












23 












24 












25 
























27 














28 






1.0 

.8 
.8 








29 






















31 





























Note. — No record for days for which discharge measurements are not given. 

OLOKELE DITCH AT T ^^NNEL NO. 12, NEAR MAKAWELI, KAUAI. 

Location.! — About 10 miles nonheast of Makaweli. 

Records available.— July 24, 1904, to December 31, 1913. 

Gage. — Vertical staff. 

Control. — Probably permanent. 

Discharge measurements.^ — Made from a plank across ditch. 

Diversion. — Ditch diverts all low-water flow of Olokele River. 

Accuracy. — Records excellent. 

Cooperation. — Gage-height records furnished by Hawaiian Sugar Co. 

Discharge measurements of Olokele ditch at tunnel 12, near Makaweli, Kauai, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 

Sec.-ft. 
95.9 
86.0 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Apr. 27 


W. V. Hardy 


Feet. 
3.54 
3.24 


Apr. 27 
June 27 


W. V. Hardy 


Feet. 
3.04 
3.84 


Sec.-ft. 
78.9 


27 


do 


do 


106 









1 Described in U. S. Geol. Survey Water-Supply Paper 336 as about "12 miles northeast of "Waimea." 
97764°— wsp 373—15 3 



34 WATER EESOUECES OP HAWAII^ 1913. 

Daily discharge, in second-feet, of Olokele ditch at tunnel 12, Mahaweli, Kauai, for 1913. 



Day. 



Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


64 


51 


51 


105 


81 


51 


105 


51 


91 


55 


47 


55 


51 


51 


101 


105 


47 


105 


58 


72 


51 


51 


51 


51 


51 


75 


97 


41 


105 


51 


72 


47 


88 


51 


47 


51 


72 


81 


41 


105 


51 


61 


47 


61 


51 


51 


51 


64 


61 


41 


105 


47 


61 


44 


68 


47 


51 


51 


58 


55 


105 


78 


47 


72 


105 


105 


51 


97 


55 


55 


68 


84 


88 


64 


61 


75 


51 


101 


78 


55 


51 


94 


61 


68 


78 


55 


106 


88 


91 


55 


51 


55 


64 


91 


61 


97 


68 


106 


101 


101 


51 


51 


68 


58 


105 


55 


55 


55 


68 


94 


101 


88 


47 


97 


51 


97 


55 


55 


51 


61 


105 


101 


58 


47 


64 


88 


64 


51 


51 


68 


68 


61 


101 


55 


47 


105 


105 


94 


105 


78 


61 


105 


105 


101 


51 


47 


101 


78 


78 


72 


84 


51 


94 


101 


91 


51 


47 


105 


64 


94 


72 


68 


61 


84 


105 


91 


58 


55 


84 


68 


101 


64 


58 


55 


97 


105 


72 


51 


94 


105 


64 


58 


58 


58 


51 


68 


106 


61 


51 


61 


97 


97 


55 


55 


55 


51 


55 


76 


58 


72 


72 


101 


61 


75 


58 


51 


51 


64 


105 


55 


55 


97 


75 


55 


55 


64 


51 


47 


61 


105 


58 


68 


91 


72 


51 


97 


55 


105 


47 


51 


94 


58 





75 


68 


51 


55 


61 


56 


55 


51 


78 


57 


61 


64 


64 


51 


68 


55 


55 


47 


61 


78 


55 


101 


97 


72 


51 


72 


68 


51 


47 


61 


105 


54 


72 


101 


105 


58 


75 


105 


101 


47 


64 


105 


52 


55 


,97 


84 


68 


105 


105 


72 


47 


58 


105 


51 


44 


68 


68 


51 


72 


81 


58 


47 


58 


105 


51 


55 


78 


64 


64 


75 


61 


68 


55 


68 


75 


51 




61 


105 


51 


75 


105 


105 


51 


61 


68 


51 




58 


101 


97 


105 


58 


105 


47 


47 


22 


58 




61 




55 




55 


105 




47 





Dec. 



1 
2 
3 
4 
5 

6 

7 

8 

9 

10 

11 
12 
13 
14 
15 

16 
17 

18 
19 
20 

21 
22 
23 

24 
25 

26 
27 
28 
29 
30 
31 



38 
61 
64 
68 
68 

105 
68 
55 
55 
51 

51 
51 
51 
51 
51 

65 
47 
51 
61 
61 

47 
51 

47 
47 
47 

47 
47 
47 
47 
47 
47 



Monthly discharge of Olokele ditch at tunnel 12, near Mahaweli, Kavxii, for 1913. 



Month. 



January 

Februarj^ 

March 

April 

May 

June 

July 

August 

September 

' October 

November 

December 

The year 



Discharge in second-feet. 



Maximum. Minimum. Mean 



101 
101 
101 
105 
105 
105 
105 
105 
91 
105 
105 
105 



67.5 
68.2 
64.0 
81.4 
68.8 
74.6 
75.4 
67.6 
56.2 
66.0 
86.4 
53.7 



68.2 



Run-off 
(total in 
acre-feet). 



4,160 
3,230 
3,940 
4,840 
4,230 
4,440 
4,640 
4,150 
3,340 
4,060 
5,080 
3,300 



49, 400 



Accu- 
racy. 



ISLAND OF KAUAI. 



35 



OLOKELE DITCH AT WEIR, NEAR MAKAWELI, KAUAI.^ 

Location. — About 7 miles nortlieast of Makaweli and about 3 miles below tmmel No. 

12 on the same ditch. 
Records available. — January 1, 1910, to December 31, 1913. 
Gage. — Vertical staff; zero on gage is equal to crest of weir. 
Discharge measttrements. — Made from plank over ditch. Discharge computed 

by Francis formula for a 12-foot weir with end contractions; computations checked 

by current-meter measurements. 
Diversion. — Ditch diverts all of low-water flow of Olokele River. 
Accuracy. — Records good. 
Cooperation. — Records are furnished by the Hawaiian Sugar Co. 

Discharge measurements of Olokele ditch at weir, near Makaweli, in 1913. 



Date. 



Feb. 14 
14 



Hydrographer. 



W. V. Hardy. 
do 



height. 



Feet. 
2.21 
2.21 



Dis- 
charge. 



Sec.-ft. 
51. 
51. 



Daily discharge, in second-feet, of Olokele ditch at weir, near Makaweli, Kauai, for 1913. 



Day. 



1 

2 
3 
4 
5 

6 
7 
8 
9 
10 

11 
12 
13 
14, 
15 

16 

17, 
18, 
19 
20, 

21 
22 
23 
24 
25 

26 
27 
28, 
29 
30 
31 



Jan. 



73.4 
89.3 
89.3 
95.8 
87.6 

82.9 
76.5 
90.9 
86.0 
74.9 

64.4 
57.3 
57.3 
60.1 
64.4 

55.8 
51.7 
50.4 
47.7 
47.7 

49.0 
47.7 
49.0 
51.7 
50.4 

49.0 
50.4 
57.3 
67.3 
61.5 
57.3 



Feb. 



58.7 
54.5 
64.5 
73.4 
65.9 

60.1 
49.0 
49.0 
51.7 
50.4 

51.7 
68.9 
64.4 
65.9 
60.1 

60.1 
64.4 
68.9 
57.3 
51.7 

50.4 
49.0 

47.7 
47.7 
47.7 

47.7 
50.4 
74.9 



Mar. 



73.4 
58.7 
60.4 
47.7 
49.0 

49.0 
51.7 
60.4 
49.0 
60.1 

74.9 
76.5 
78.0 
82.9 
86.0 

82.9 
76.5 
76.5 
78.0 
82.9 

84.5 
82.9 
82.9 
90.9 
94.2 

84.5 
79.6 
67.4 
64.4 
67.4 
84.5 



Apr. 



87.6 
79.6 
82.9 
70.3 
67.3 

61.7 
60.4 

66.8 
76.6 



78.0 
79.6 
94.2 
95.8 
89.3 

82.9 
90.9 
87.6 
81.2 
65.9 

66.9 
63.0 
71.9 
74.9 
89.3 

71.9 
71.9 
86.0 
92.5 
90.9 



82.9 
92.5 
90.9 
70.3 

58.7 

70.3 
78.0 
74.9 

68.7 
68.7 

81.2 
89.3 
89.3 
68.9 
68.9 

64.4 
74.9 
68.9 
67.3 
51.7 

49.0 

47.7 
61.7 
67.4 
65.8 

53.1 
57.3 
54.5 
57.3 

58.7 
50.4 



June. 



47.7 
57.3 
47.7 
40.0 
43.8 

74.9 
63.0 
67.4 
84.5 
84.5 

73.4 
70.3 
89.3 
79.6 
73.4 

67.4 
68.7 
67.3 
60.1 
63.0 

60.1 
57.3 
61.5 
60.1 
86.0 

84.5 
87.6 
82.9 
73.4 
90.9 



July. 



95.8 
99.1 
101 
99.1 
87.6 

78.0 
70.3 
61.5 
57.3 
64.5 

54.5 
61.5 
76.6 
70.3 
64.4 

63.0 

58.7 
57.3 
64.4 

58.7 

64.6 
54.6 
57.3 
67.4 
74.9 

79.6 
67.4 
61.5 

67.4 
56.8 
61.7 



Aug. 



58.7 
63.1 

47.7 
46.4 
47.7 

51.7 
66.9 
66.9 
61.6 
65.8 

50.4 
74.9 
76.5 
76.6 
60.1 

61.5 
53.1 
50.4 
50.4 
64.5 

61.6 
54.5 
55.8 
68.9 



64.4 
71.9 

87.6 
87.6 
82.9 
84.5 



Sept. 


Oct. 


Nov. 


79.6 


46.1 


42.5 


67.4 


49.0 


42.5 


64.4 


45.1 


70.3 


57.3 


42.6 


64.4 


64.4 


41.2 


61.5 


70.3 


46.4 


63.0 


61.6 


70.3 


61.6 


63.1 


86.0 


61.6 


61.7 


90.9 


65.9 


47.7 


82.9 


90.9 


47.7 


68.9 


92.5 


49.0 


65.9 


86.0 


46.1 


67.4 


89.3 


45.1 


86.0 


87.6 


47.7 


90.9 


86.0 


46.4 


73.4 


90.9 


45.1 


61.5 


90.9 


45.1 


53.1 


87.6 


43.8 


58.7 


92.6 


43.8 


53.1 


99.1 


49.0 


47.7 


92.6 


46.4 


50.4 


86.0 


42.5 


55.8 


92.6 


42.5 


53.1 


97.6 


41.2 


55.8 


99.1 


41.2 


54.5 


101 


40.0 


50.4 


92.6 


42.6 


50.4 


78.0 


68.7 


60.4 


70.3 


47.7 


46.1 
43.8 


53.1 



Dec. 



41.2 
47.7 
64.4 
73.4 
70.3 

76.5 
79.6 

58.7 
60.4 
49.0 

47.7 
47.7 
47.7 
47.7 
47.7 

46.4 
46.4 
46.4 

47.7 
47.7 

47.7 
49.0 
46.4 
46.1 
46.1 

45.1 
45.1 
45.1 
43.8 
43.8 
43.8 



1 Described in U. S. Geol. Survey Water-Supply Paper 336 as about 8 miles northeast of Waimea. 



36 WATER EESOUECES OF HAWAII, 1913. 

Monthly discharge of Olokele ditch at weir, near Makaweli, Kauai, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. 



Minimum. 



Mean. 



Rim-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



95.8 
74.9 
94.2 
95.8 
92.5 
90.9 

101 
87.6 
79.6 
90.9 

101 
79.6 



47.7 
47.7 
47.7 
50.4 
47.7 
40.0 
51.7 
46.4 
40.0 
41.2 
42.5 
41.2 



64.0 
57.0 
71.5 
77.3 
66.2 
68.2 
68.6 
62.9 
50.9 
59.2 
79.6 
51.1 



101 



40.0 



64.8 



3,940 
3,170 
4,400 
4,600 
4,070 
4,060 
4,220 
3,870 
3,030 
3,640 
4,740 
3,140 



46,900 



POOWAIOMAHAIHAI DITCH NEAR WAIMEA, KAUAI. 

Location. — About 110 feet below bridge station on Makaweli River, 250 feet below 

intake, and about 2 miles northeast of Waimea. 
Records available.— October 27, 1911, to September 30, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 

Discharge measurements. — ^Made from timber bridge 15 feet above gage. 
Diversion. — Ditch diverts part of flow of Makaweli River. 
Accuracy. — Records good. 

The following discharge measurement was made by W. V. Hardy: 
April 30, 1913: Gage height, 1.67 feet; discharge, 13.5 second-feet. 

Daily discharge, in secondfeet, of Pooivaiomahaihai ditch near Waimea, Kauai, for 1913. 



Day. 



Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


4.3 


6.2 


7.3 


8.5 


7.3 


3.5 


6.5 


5.7 


4.3 


6.2 


7.3 


5.2 


4.3 


2.8 


6.8 


6.1 


4.3 


6.2 


7.3 


3.5 


4.3 


8.5 


7.2 


6.0 


3.5 


5.2 


6.2 


3.5 


8.5 


7.3 


6.8 


5.8 


3.5 


5.2 


6.2 


2.8 


4.3 


5.2 


6.2 


5.7 


4.3 


5.2 


6.2 


2.8 


6.2 


4.3 


6.1 


5.5 


4.3 


5.2 


5:2 


2.8 


6.2 


3.5 


5.9 


5.5 


5.2 


5.2 


5.2 


2.8 


4.3 


3.5 


5.7 


5.4 


5.2 


4.3 


5.2 


8.5 


4.3 


3.5 


5.9 


5.2 


3.5 


13 


5.2 


4.3 


3.5 


7.3 


5.8 


5.2 


3.5 


7.3 


5.2 


3.5 


3.5 


5.2 


5.8 


5.1 


7.3 


7.3 


5.2 


7.3 


25 


5.2 


5.7 


4.9 


39 


6.2 


4.3 


18 


8.5 


4.3 


5.8 


4.9 


14 


7.3 


4.3 


8.5 


7.3 


3.5 


5.9 


4.8 


18 


7.3 


4.3 


9.8 


7.3 


3.5 


5.9 


4.6 


18 


7.3 


4.3 


8.5 


6.2 


3.5 


5.8 


4.6 


13 


7.3 


7.3 


7.3 


6.2 


5.4 


5.8 


4.6 


6.2 


7.3 


4.3 


6.2 


5.2 


5.2 


5.8 


4.6 


6.2 


6.2 


4.3 


7.3 


5.2 


5.2 


5.7 


4.6 


4.3 


7.3 


5.2 


6.2 


5.2 


5.3 


5.7 


4.5 


4.3 


8.5 


5.2 


6.2 


3.5 


5.3 


5.5 


4.5 


4.3 


7.3 


7.3 


6.2 


3.5 


5.4 


5.3 


4.6 


5.2 


7.3 


4.8 


5.2 


5.2 


5.2 


5.0 


4.8 


5.2 


7.3 


6.2 


5.2 


4.3 


5.1 


4.8 


4.8 


4.3 


9.8 


9.8 


6.2 


4.3 


5.1 


4.8 


4.6 


5.2 


8.5 


6.2 


5.2 


4.3 


4.9 


5.0 


4.6 


4.3 


7.3 


4.8 


5.2 


3.5 


12 


5.1 


4.6 


5.2 


7.3 


4.3 


4.3 


3.5 


10 


5.0 


4.5 


4.3 




3.5 


8.5 


3.5 


6.5 


5.2 


4.5 


4.3 




3.5 


7.3 


3.5 


10 


5.3 


7.0 


4.3 




3.5 




3.5 




5.2 


7.2 



Sept. 



1 
2 

3 

4 
5 

6 
7 
8 
9 
10 

11, 
12, 
13 

14 
15, 

16 
17, 
18, 
19, 
20, 

21, 
22 
23, 
24, 
25 

26 
27 
28 
29 
30 
31 



8.4 
7.9 
7.5 
6.8 
6.2 

6.0 
6.0 
6.1 
5.9 
5.7 

5.5 
5.5 
5.3 
5.3 
5.2 

5.1 

4.9 
5.2 
5.3 
5.2 

5.1 
5.1 
5.0 
5.2 
4.9 

5.9 
5.7 
6.2 
6.1 
5.6 



ISLAND OF KAUAI. 37 

Monthly discharge of Pooivaimahaihai ditch near Waimea, Kauai, for 19 IS. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

The period 



39 

13 
9.8 

18 

25 

12 
7.2 
7.2 
8.4 



3.5 
4.3 
3.5 
2.8 
3.5 
2.8 
4.8 
4.5 
4.9 



7.20 
6.99 
5.45 
6.23 
5.66 
5.53 
5.71 
5.13 
5.79 



443 
388 
335 
371 
348 
329 
351 
315 
345 



3,220 



HANAPEPE RIVER AT KOULA, NEAR ELEELE, KAUAI. 

Location. — About 5 miles north of Eleele. 

Records available. — August 18, 1910, to December 31, 1913. 

Drainage area. — 12.6 square miles. 

Gage. — Friez water-stage recorder. 

Control. — Fairly permanent. 

Discharge measurements. — ^Made from cable or by wading. 

Diversions. — Nearly all low-water flow diverted above station. 

Accuracy. — Records fair. 
The following discharge measurement was made by D. E. Horner: 
October 14, 1913: Gage height, 1.56 feet; discharge, 46.3 second-feet 

Daily discharge, in secondfeet, of Hanapepe River at Koula, near Eleele, Kauai, for 1913. 



Day. 



Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


24 


16 


13 


78 


55 


14 


87 


67 


51 


15 


14 


20 


16 


13 


40 


174 


25 


277 


30 


72 


13 


29 


19 


16 


13 


39 


95 


357 


105 


14 


40 


12 


18 


18 


15 


13 


29 


58 


108 


118 


13 


16 


12 


13 


18 


17 


13 


18 


27 


84 


138 


12 


15 


12 


14 


19 


50 


13 


14 


40 


38 


50 


13 


43 


53 


20 


20 


55 


21 


14 


54 


36 


36 


18 


20 


66 


14 


165 


36 


16 


16 


80 


20 


23 


17 


14 


420 


13 


50 


17 


13 


55 


32 


46 


22 


14 


14 


196 


94 


180 


32 


13 


20 


25 


38 


20 


13 


13 


56 


171 


142 


33 


13 


20 


142 


64 


18 


12 


13 


76 


442 


142 


16 


13 


15 


246 


24 


17 


26 


13 


53 


603 


459 


14 


13 


243 


266 


48 


60 


25 


13 


121 


453 


129 


14 


13 


149 


117 


40 


23 


23 


13 


63 


126 


264 


14 


13 


142 


67 


34 


22 


15 


14 


43 


88 


120 


18 


14 


41 


36 


44 


22 


13 


13 


34 


92 


59 


15 


23 


112 


38 


19 


18 


13 


12 


22 


61 


63 


25 


16 


72 


56 


23 


18 


12 


12 


29 


52 


75 


30 


20 


87 


22 


25 


20 


12 


13 


15 


298 


24 


29 


22 


30 


IS 


18 


36 


12 


12 


14 


343 


29 


19 


22 


24 


17 


26 


18 


32 


12 


18 


125 


72 


16 


36 


20 


17 


18 


16 


13 


12 


43 


130 


43 


16 


35 


38 


16 


20 


15 


12 


12 


30 


167 


80 


48 


28 


18 


26 


16 


17 


13 


12 


60 


184 


34 


18 


76 


221 


16 


20 


41 


24 


12 


88 


352 


20 


14 


67 


57 


13 


57 


68 


18 


12 


72 


246 


19 


13 


30 


33 


14 


120 


25 


15 


12 


52 


132 


17 


13 


24 


29 


14 


92 


15 


43 


26 


34 


86 


16 




29 


82 


14 


36 


29 


143 


12 


15 


363 


16 




18 


142 


101 


78 


14 


38 


12 


15 


225 


20 




22 




24 




14 


123 




15 





Dec. 



1. 

2. 
3. 
4. 
5. 

6. 
7. 
8. 
9. 
10. 

11. 
12. 
13. 
14. 
15. 

16. 
17. 
18. 
19. 
20. 

21 
22 
23 
24 
25 

26 

27 
28 
29 
30 
31 



38 WATER RESOURCES OF HAW AH, 1913. 

Monthly discharge of Hanapepe River at Koula, near Eleele, Kauai. 



Month. 



Discharge in second-feet. 



Maximum. Mi-m'Tm iTn, Mean. 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



459 



243 
266 
357 
277 
143 
72 
420 
603 
126 



76.6 
22.7 
22.2 
63.3 
61.9 
52.9 
45.2 
27.4 
18.7 
57.0 
166 
27.1 



53.4 



4,710 
1,260 
1,360 
3,770 
3,810 
3,150 
2,780 
1,680 
1,110 
3,500 
9,880 
1,670 



38, 700 



HILOA DITCH AT HANAPEPE FALLS NEAR ELEELE, KAUAI. 

Location. — ^About 8 miles north of Eleele and 335 feet below intake, which is just 
above confluence of the main and east branches of Hanapepe River. 

Records available. — November 22, 1911, to December 31, 1913. 

Gage. — Vertical staff. 

Control. — Probably permanent. 

Discharge measurements. — Made from plank across ditch at gage. 

Diversion. — Ditch diverts all low-water flow from the main branch of Hanapepe 
River above Hanapepe Falls. 

Accuracy. — Records good. 

Discharge measurements of Hiloa ditch at Hanapepe Falls, near Eleele, Kauai, in 1913. 



Date. 



Hydrographer. 



Gage 
height. 



Dis- 
charge. 



June 21 
Oct. 14 



W. V. Hardy . 
D. E.Horner. 



Feet. 
2.09 
2.18 



Sec.-ft. 
41.1 
45.5 



ISLAND OF KAUAI. 



39 



Daily discharge, in second-feet^ of Hiloa ditch at Hanapepe Falls, near Eleele, Kauai, for 

1912-lS. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1912. 
1 


34 
35 
35 
34 
50 

38 
41 
44 
44 
40 

35 
35 
39 
29 
35 

33 
32 
32 
31 
43 

37 
31 
56 
18 
26 

26 
26 
28 
31 
30 
33 

39 
37 
34 
33 
33 

33 
33 

66 
39 

48 

52 
4G 
40 
41 
49 

37 
37 

22 

"o 

42 

42 
50 

43 
44 
45 

40 
36 
35 
34 
33 
34 


31 
31 
30 
30 
29 

29 
29 
29 
29 
32 

30 
29 
28 
28 
28 

28 
29 
28 
28 
28 

29 
40 
50 
39 
36 

34 
32 
31 
30 

32 
32 
31 
32 
34 

39 
46 
45 
44 
43 

41 
35 
32 
31 
31 

30 
30 
39 

47 
37 

37 
33 
38 
43 
33 

31 
30 
29 


37 
31 
32 
33 
30 

36 
32 
31 
50 
54 

68 
42 
45 
43 
40 

40 
40 
40 
35 
35 

34 
35 
31 
36 
42 

33 
31 
30 
30 
29 
33 

29 
28 
28 
28 
28 

28 
46 
29 
28 
28 

28 
27 
27 
28 
27 

40 
62 
31 
34 
41 

40 
61 
44 
38 
53 

62 
40 
40 
52 
48 
43 


29 
29 
28 
37 
31 

30 
37 
44 
43 
40 

39 
36 
33 
32 
32 

32 
40 
39 
32 

47 

46 
44 
44 
32 
55 

38 
35 
33 
31 
30 

47 
46 
48 
42 
37 

34 
31 
33 

52 
37 

36 
33 
38 
44 
45 

39 

45 
42 
42 
45 

48 
37 
48 
37 
35 

40 
44 
48 
48 
45 


29 
30 
43 
53 
44 

34 
34 
45 
35 
31 

31 
32 
32 

44 
45 

38 
32 
31 
30 
30 

34 
44 
46 
49 
39 

44 
48 
39 
34 
42 
40 

48 
43 
44 
44 
43 

41 

48 
50 
46 
40 

44 
47 
52 
18 
39 

39 
41 
40 
40 
37 

35 
34 
32 

48 
40 

32 
37 
37 
34 

44 
39 


36 
34 
33 
39 
37 

35 
32 
33 
32 
31 

32 
31 
54 
44 
46 

39 
32 
41 
44 
37 

60 
43 
46 
49 
40 

34 
36 
32 
31 
30 

36 
32 
48 
14 
14 

44 
42 
44 
46 
44 

45 
40 
46 
46 
46 

45 
38 
40 
41 
34 

46 
42 
38 
33 

46 

46 
53 
42 
41 
40 


37 
32 
30 
38 
46 

31 
31 
31 
31 
43 

53 
42 
48 
46 
43 

44 
-52 
41 
40 
40 

40 
39 
39 
51 
39 

38 
36 
34 
33 
. 36 
32 

43 
44 
44 
45 
46 

44 
41 
39 
41 

38 

34 
34 
35 
36 
37 

43 
34 
32 
33 
34 

34 
32 
31 

35 

42 

46 
40 
34 
44 
33 
32 


32 
31 
30 
32 
35 

34 

45 
45 
52 
36 

34 
32 
32 
55 
38 

37 
33 
32 
31 
31 

31 
40 
31 
39 
38 

38 
38 
41 
40 
42 
40 

30 
38 
35 
32 
31 

34 

37 
36 
38 
34 

30 

45 
40 
38 
35 

31 
30 
30 

28 
29 

44 
34 
30 
37 
44 

39 
32 
36 

48 
42 
41 


40 
41 
40 
37 
38 

35 
40 
40 
40 
36 

34 
35 
34 
32 
37 

42 
36 
31 
36 
33 

32 
32 
31 
30 
29 

29 
28 
30 
36 
42 

40 
40 
42 
39 
^42 

43 
- 38 
34 
35 
31 

30 
35 
30 
31 
32 

29 
29 
29 
29 
28 

■ 28 
29 
28 
27 
27 

27 
27 
28 
28 
28 


44 
30 
39 
30 
31 

32 
34 
41 
33 
36 

30 
31 
32 
33 
31 

30 
47 
35 
52 
50 

48 
44 
42 
36 
34 

52 
49 
46 
43 
46 
44 

29 
28 
27 
27 
38 

48 
41 
45 
44 

42 

42 
43 
44 
39 
42 

45 
38 
37 
35 
33 

32 
31 
38 
38 



33 
40 
33 
31 
31 


40 
35 
34 
32 

54 

43 
35 
46 
46 
40 

36 
33 
31 
30 
30 

29 
39 
49 
33 
31 

34 
46 
64 
42 
31 

29 
29 
28 
32 
45 

32 
34 
37 
31 
31 

42 
35 
30 
38 

45 

46 
39 
39 
37 
40 

38 
37 
37 
39 
• 39 

37 
40 
40 
41 

44 

35 
33 
31 

31 
26 


54 


2 


62 


3 


42 


4 


42 


5 


42 


6 


41 


7 


40 


8' 


42 


9 


43 


10 


40 


11 


37 


12 


36 


13 


36 


14 


33 


15 


34 


16 


34 


17 


32 


18 


31 




33 


20 


44 


21 


61 




62 


23 


63 


24 


60 


25 


46 


26 


42 




39 


28 


40 




39 


30 


38 




41 


1913. 
1 


19 


2 


19 


3 


18 




18 


5 


38 


6... 


38 







8 


36 




35 


10 


35 


11 


36 


12 


34 


13 


34 


14 


33 


15 


32 


16 


31 


17 


32 


18 


33 




32 


20 . . 


31 


21 


31 


22 


31 


23 


30 




30 


25 


28 


26 


30 




29 


28 


29 


29 


29 


30 


29 


31 


30 







Note.— Gage not read on Sundays; discharge estimated. 



40 WATEE RESOURCES OF HAWAII, 1913. 

Monthly discharge of Hiloa ditch at Hanapepe Falls, near Eleele, Kauai, for 19i2~13. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Run-o£E 
(total in 
acre-feet). 



Accu- 
racy. 



1912. 

January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 

1913. 

January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



63 



56 



34.9 
31.1 
37.0 
36.6 
38.1 
37.8 
39.2 
36.9 
35.2 
38.8 
37.2 
42.5 



2,150 
1,790 
2,280 
2,180 
2,340 
2,250 
2,410 
2,270 
2,090 
2,390 
2,210 
2,610 



18 



37.2 



27,000 



38.3 
35.9 
36.6 
41.5 
40.5 
40.4 
38.1 
35.7 
32.1 
34.6 
36.7 
29.3 



2,360 
1,990 
2,250 
2,470 
2,490 
2,400 
2,340 
2,200 
1,910 
2,130 
2,180 
1,800 



36.5 



26, 500 



Note. — Jan. 18, 1913: Gates closed at noon and not opened until the 20th; practically no flow for this 
period. 

May 14, June 4 and 5, 1913, Discharge affected by regulation. Oct. 25-26, no water in ditch; turned in 
at 4.15 p. m. Oct. 27. Dec. 7, 1913, no water in ditch. 



HANAPEPE DITCH AT KOULA, NEAR ELEELE, KAUAI, 

Location. — About 4 miles north of Eleele and about 4 miles below Hanapepe Falls. 

Records available. — ^January 1, 1910, to December 31, 1913. 

Gage. — ^Vertical staff. 

Control. — Probably permanent. 

Discharge measuremonts. — ^Made from cross timber of flume. 

Diversions. — Ditch diverts all low-water flow of East Branch of Hanapepe River. 

Accuracy. — Records good. 

Cooperation. — Gage-height records furnished by Hawaiian Sugar Co. 

The following djischarge measurement was made by W. V. Hardy. 
June 22, 1913: Gage height, 2.84 feet; discharge, 46.2 second-feet. 



ISLAND OF KAUAI. 41 

Daily discharge, in second-feet, of Hanapepe ditch at Koula, near Eleele, Kauai, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dee. 


1 


50 

48 
46 

44 
44 

44 
44 
52 
52 
52 

52 
52 
52 
52 
52 

52 
52 
17 
34 
52 

52 
52 
52 
52 
52 

52 
50 

48 
45 
42 
36 


57 
44 
44 
43 

48 

50 
52 
46 
45 
52 

48 
45 
43 
43 
43 

41 

45 
52 

44 
44 

45 
46 
52 
44 
39 

42 
40 
39 


38 
37 
37 
36 
36 

36 
46 
38 
37 
36 

34 
34 
84 
34 
33 

33 
51 
39 
46 
49 

52 
52 
49 
52 
52 

52 
51 
52 
52 
52 
41 


52 
52 
52 
52 

48 

43 
41 
41 
44 
50 

52 
42 
52 
52 
52 

49 
52 
52 
52 
52 

52 
52 
52 
52 
52 

52 
52 
52 
52 
52 


52 
52 
52 
51 
52 

52 
52 
52 
52 
52 

48 
50 
51 
52 
52 

52 
52 
52 
50 
50 

48 
45 
44 
49 
46 

46 
44 
47 
52 
52 
49 


46 
43 

45 

47 
48 

50 
52 
51 
51 
51 

51 
51 
51 
51 
51 

51 
50 
47 
51 
45 

51 
45 
46 

47 
48 

51 
48 
46 
51 
51 


51 
51 
51 
51 
51 

51 
51 
51 
51 
46 

46 
45 
51 
50 

49 

46 
48 
48 
44 
46 

46 
44 
39 
45 
51 

51 
51 
45 
50 
43 
40 


38 
51 
44 
41 
40 

39 
50 
50 
46 

28 

28 
38 
51 
51 

47 

40 
38 
37 
36 
27 

51 
43 
38 
38 
50 

49 
39 
44 
51 
51 
51 


51 
51 
51 
50 
51 

51 
51 
45 
44 
40 

39 
43 
36 
38 
41 

36 
35 
37 
38 

44 

33 
35 
33 
33 
32 

31 
32 

48 
44 
33 


37 
34 
33 
30 
29 

49 
49 
52 
51 
50 

50 
51 
51 
50 
50 

50 
48 
46 
43 
42 

39 
40 
51 
51 
50 

48 
47 
46 
42 
39 
40 


38 
46 

47 
40 
40 

51 
39 
37 
49 
51 

51 
51 
48 
52 
52 

52 
52 
52 
52 
51 

49 
52 
52 
52 
39 

32 
34 
34 
69 
104 


93 


2 

3 


82 
71 


4 


60 


5 


49 


6 


50 


7 


43 


8 


36 


9 ... 


36 


10 


37 


11 


44 


12 


44 


13 


44 


14 


44 


15 


43 


16 


42 


17 


42 


18 


43 


19 


42 


20 


41 


21 


41 


22 . . . . 


41 


23 


40 


24 


40 


25 


40 


26 


39 


27 


39 


28 


38 


29 

30 


38 
38 




39 







Note. — Discharge interpolated for Sundays and holidays when no readings were made. 

Monthly discharge of Hanapepe ditch at Koula, near Eleele, Kauai, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-oflf 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

AprU 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



52 
57 
52 
52 
52 
52 
51 
51 
51 
52 
104 
93 



47.6 
45.6 
42.6 
50.1 
50.0 
48.9 
47.8 
42.7 
40.9 
44.8 
48.9 
45.8 



2,930 
2,530 
2,620 
2,980 
3,070 
2,910 
2,940 
2,630 
2, 430 
2,750 
2,910 
2,820 



4. 3 



33,500 



HANAPEPE DITCH AT WEIR NEAR HANAPEPE, KAUAI. 

Location.— About 2J miles northeast of Hanappe at measuring weir maintained 

by Hawaiian Sugar Co., on the Hanapepe ditch below the last siphon across 

Hanapepe River. 
Records available. — ^January, 1910, to December 31, 1913; records show amount of 

water delivered by the ditch at the cane fields. 
Gage. — Vertical staff on right bank; zero on gage equals crest of weir. 
Control. — Probably permanent. 
Discharge measurements. — Computed from formula for a 12-foot, sharp-crested 

weir with end contractions; checked by current-meter measurements. 
Cooperation. — Gage-height records furnished by Hawaiian Sugar Co. 



42 WATEE EESOUECES OF HAWAH^ 1913. 

Daily discharge, in second-feet, of Hanapepe ditch at weir near Hanapepe, Kauai, for 19 tS. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


46.4 
46.4 
45.1 
43.8 
42.5 

42.5 
42.5 
45.1 
46.4 
45.1 

42.5 
43.8 
45.1 
45.1 
46.4 

47.7 
47.7 
28.2 


43.8 
41.2 
41.2 
40.0 
41.2 

42.5 

45.1 
46.4 
45.1 
43.8 

46.4 
46.4 
42.5 
41.2 
41.2 

41.2 
40.0 
41.2 

43.8 
45.1 

45.1 
42.5 
42.5 
42.5 
43.8 

41.2 
40.0 
37.0 


36.3 
35.2 
35.2 
34.0 
32.8 

32.8 
35.2 
38.8 
36.3 
34.0 

32.8 
31.6 
31.6 
31.6 
31.6 

-32.8 
34.0 
40.0 
41.2 
42.5 

43.8 
43.8 
43.8 
42.5 
42.5 

43.8 
41.2 

43.8 
42.5 
40.0 
40.0 


41.2 

41.2 
42.5 
41.2 
41.2 

37.5 
36.3 
35.2 
35.2 

37.5 

37.5 

38.8 
38.8 
41.2 
42.5 

42.5 
42.5 
42.5 
42.5 
42.5 

42.5 
41.2 
41.2 
41.2 
40.0 

41.2 
41.2 
41.2 
42.5 
42.5 


41.2 
41.2 
41.2 
40.0 
30.4 

37.5 
41.2 
41.2 
41.2 
41.2 

37.5 
40.0 
27.1 

30.4 

46.4 
46.4 
46.4 
45.1 

43.8 
42.5 
42.5 
42.5 
43.8 

42.5 
42.5 
41.2 
41.2 
41.2 
43.8 


45.1 

42.5 
40.0 

""45.'i' 
46.4 
45.1 
46.4 

46.4 
46.4 
45.1 
45.1 
45.1 

45.1 
45.1 
45.1 
43.8 
42.5 

43.8 
42.5 
42.5 
41.2 
41.2 

43.8 
43.8 
41.2 
34.0 
45.1 


45.1 
45.1 
46.4 
45.1 
45.1 

45.1 
45.1 
42.5 
42.5 
41.2 

40.0 
40.0 
40.0 
41.2 
41.2 

41.2 
41.2 

38.8 
37.5 
40.0 

40.0 
38.8 
37.5 
37.5 
38.8 

41.2 
41.2 
41.2 
40.0 
41.2 
38.8 


37.5 

38.8 
42.5 
42.5 
38.8 

38.8 
40.0 
41.2 
40.0 
38.8 

37.5 
37.5 
38.8 
41.2 
41.2 

38.8 
36.3 
34.0 
32.8 
32.8 

36.3 
37.5 
36.3 
34.0 
35.2 

38.8 
38.8 
38.8 
40.0 
42.5 
43.8 


43.8 

43.8 
43.8 
43.8 
42.5 

42.5 
43.8 
42.5 
40.0 
40.0 

37.5 
36.3 
3.5.2 
35.2 
35.2 

35.2 
34.0 
32.8 
35.2 
34.0 

32.8 
32.8 
31.6 
30.4 
30.4 

30.4 
30.4 
31.6 
35.2 
32.8 


34.0 
35.2 
32.8 
30.4 
30.4 

35.2 
40.0 
43.8 
45.1 
45.1 

46.4 
46.4 
46.4 
45.1 
38.8 

42.5 
43.8 
40.0 
19.8 
35.2 

38.8 
38.8 
41.2 
42.5 
23.9 

"so." 4' 

40.0 
40.0 


40.0 
40.0 
40.0 
41.2 
40.0 

41.2 
42.5 
40.0 
42.5 
46.4 

46.4 
46.4 
49.0 
49.0 
45.1 

40.0 
46.4 

47.7 
49.0 

47.7 

46.4 

"46.' 6' 

37.5 

36.3 
36.3 
35.2 




2 . . 




3 




4 




5.. . . 




6 


40 


7 




8 


21 8 


9 


36 3 


10 

11 


37.5 
38 8 


12 

13 


41.2 
42 5 


14 


42 5 


15 


42 5 


16... 


42 5 


17 


41 2 


18 

19 


40.0 
41 2 


20 


32.8 

47.7 
47.7 
47.7 
42.5 
23.9 

47.7 
47.7 
46.4 
45.1 
43.8 
43.8 


40 


21 . 


41 2 


22 

23 


41.2 
40.0 


24 

25 


40.0 
40 


26 


40 


27 


38.8 


28 

29 


38.8 
37 5 


30 

31 


36.3 
35.2 



Note.— Ditch dry Jan. 19; May 14-15; June 4-6; Oct. 26-28; Nov. 22-24 and 30; Dec. 1-5 and 7. 
Monthly discharge of Hanapepe ditch at weir near Hanapepe, Kauai, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean. 



Rim-off 
(total in 
acre-feet ■). 



January 1-18, 20-31 . . 

February 

March 

April 

May 1-13, 16-31 

June 1-3, 7-30 

July 

August 

September 

October 1-25, 29-31 . . 
November 1-21, 25-29 
December 6, 8-31 

The period 



47.7 
46.4 
43.8 
42.5 
46.4 
46.4 
46.4 
43.8 
43.8 
46.4 
49.0 
42.5 



49.0 



23.9 
37.5 
31.6 
35.2 
27.1 
34.0 
37.5 
32.8 
30.4 
19.8 
35.2 
21.8 



19.8 



43.6 
42.7 
37.7 
40.5 
40.8 
43.7 
41.3 
38.4 
36.5 
38.3 
42.8 
39.1 



40.4 



2,590 
2,370 
2,320 
2,410 
2,350 
2,340 
2,540 
2,360 
2,170 
2,130 
2,200 
1,930 



27, 700 



Note. — Mean for month and period is for days when ditch carried water. 



ISLAND OF KAUAI. 



43 



HULEIA RIVER NEAR LIHUE, KAUAI. 



Location. — About 300 feet above stone bridge where ■wagon road from Lihue to the 

Rice plantation crosses stream; about 4 miles southeast of Lihue. 
Records available. — May 8, 1912, to December 31, 1913. 
Drainage area. — 17.9 square miles. 

Gage. — Vertical low-water staff gage; inclined high-water gage. 
Control. — Probably permanent. 
Discharge measurements. — Made by wading. 

Cooperation. — Station is maintained in cooperation with Mr. Charles Rice. 
Diversions. — Several above station. 
Accuracy. — Records poor. 

Daily discharge, in second-feet, of Ruleia River near Lihue, Kauai, for 1912-13. 



Day. 


May. 


Jiine. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dee. 


1912. 
1 




7.2 
7.2 
7.2 
9.0 
11 

9.4 
8.3 
7.4 
7.2 

7.2 

7.4 
7.4 
7.2 
7.4 
7.4 

11 
7.2 

7.2 
7.2 
7.2 

7.2 
7.0 
6.7 
6.4 
6.4 

6.4 
6.4 
6.4 
6.4 
6.4 


6.4 
6.2 
6.8 
5.7 
5.5 

5.5 
5.5 
6.5 
5.5 

7.6 

9.0 

7.4 
7.0 

40 

26 

7.4 
9.0 
7.4 
7.2 
7.2 

7.2 
7.2 
7.0 
7.0 
7.2 

7.2 
7.2 
7.0 
7.2 
7.2 
7.2 


7.0 
6.4 
6.4 
6.2 
6.2 

7.0 
6.4 
5.8 
5.5 
5.7 

5.5 
5.5 
5.5 
7.2 
9.2 

6.5 
6.4 

5.8 
6.8 
5.8 

5.8 
6.2 
5.8 
7.2 
7.0 

7.0 
52 
7.2 
7.0 
7.2 
7.4 


7.2 
6.4 
7.2 
7.2 
7.2 

61 

8.6 
7.2 
7.2 

7.2 

6.4 
5.8 
5.7 
5.5 
5.5 

5.5 
5.5 
5.5 
6.4 
5.7 

5.5 
5.6 

5.5 
5.5 
5.6 

6.5 
5.6 
5.5 
5.5 
5.5 


5.8 
5.5 
5.5 
5.5 
5.7 

5.5 
5.5 
6.0 
7.0 
7.2 

7.4 
7.4 
5.8 
5.8 
5.5 

5.5 
5.6 
5.5 

6.4 
7.2 

31 
9.0 

7.2 
7.2 
7.0 

24 
8.1 
7.2 
9.0 
9.4 
8.5 


7.4 
7.4 
7.2 
7.2 
7.2 

7.2 
7.2 
7.2 
40 
8.1 

8.1 
7.7 
6.4 
5.8 
6.8 

5.7 
5.7 
7.0 
6.2 
5.7 

6.4 
7.2 
8.1 
7.4 
7.2 

6.5 
5.7 
5.7 
20 
8.1 


9 


2 . 




87 


3 




116 


4 




55 


5 




40 


6 




31 


7 


7.4 
7.2 
7.2 
7.2 

7.2 
7.2 
7.2 
7.2 
9.0 

8.1 
7.4 
7.2 
7.2 
7.0 

6.9 
6.5 
7.2 

7.4 
7.2 

7.2 
7.2 
8.1 
8.5 
7.6 
7.4 


31 


8 


31 


9 


24 


10 


20 


11 


18 


12 


18 


13 


17 


14 


16 


15 


16 


16 


14 


17 


14 


18 . 


14 


19 


12 


20 


14 


21 


14 


22 


12 


23 


65 


24 


87 


25 


73 


26 


64 


27 


27 


28 


16 


29 


14 


30 


14 


31 


14 







44 WATER RESOUECES OF HAWAII, 1&13. 

Daily discharge, in second-feet, of Huleia River near Lihue,for 1912-13 — Continued. 



Day. 



Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


12 


7.2 


11 


26 


11 


9.7 


14 


7.7 


14 


6.0 


12 


11 


6.4 


11 


21 


9.7 


12 


46 


12 


11 


6.0 


67 


9.0 


5.7 


11 


18 


9.7 


191 


25 


9.7 


9.7 


6.0 


25 


8.1 


5.5 


10 


16 


9x7 


109 


15 


7.7 


8.1 


7.7 


20 


7.4 


7.2 


10 


15 


9.7 


80 


12 


7.7 


7.7 


9.9 


18 


7.4 


174 


9.2 


15 


9.9 


61 


11 


7.7 


7.7 


11 


18 


7.2 


58 


8.3 


15 


9.9 


67 


10 


7.7 


7.7 


12 


21 


7.2 


40 


7.2 


18 


9.7 


124 


9.7 


7.7 


7.7 


173 


18 


7.4 


37 


7.2 


30 


9.7 


67 


8.7 


7.7 


7.7 


191 


18 


8.1 


31 


6.4 


25 


9.7 


55 


8.7 


7.7 


7.7 


44 


31 


9.2 


17 


5.7 


23 


9.7 


28 


8.7 


7.7 


7.7 


18 


44 


10 


12 


5.5 


23 


44 


21 


7.9 


7.7 


7.7 


14 


55 


14 


11 


7.2 


28 


101 


18 


7.7 


7.7 


7.7 


12 


35 


14 


9.6 


8.1 


21 


55 


15 


7.7 


7.4 


7. 7 


12 


25 


18 


8.1 


7.4 


20 


94 


12 


7.7 


6.8 


7.5 


11 


67 


18 


8.1 


6.4 


18 


28 


11 


7.7 


6.2 


7.5 


11 


18 


22 


7.6 


5.8 


16 


25 


11 


7.7 


6.2 


7.5 


11 


39 


24 


7.2 


5.7 


15 


23 


11 


7.7 


6.0 


7.5 


23 


39 


24 


8.1 


5.5 


15 


22 


9.9 


7.7 


6.0 


6.8 


11 


25 


45 


9.0 


5.5 


14 


20 


9.7 


7.7 


6.0 


6.8 


11 


116 


61 


11 


5.5 


12 


19 


9.7 


7.7 


6.0 


8.1 


9.9 


132 


55 


12 


5.5 


11 


16 


9.3 


7.7 


6.0 


7.7 


9.9 


73 


55 


13 


272 


10 


15 


8.7 


7.7 


6.0 


6.8 


12 


94 


52 


40 


73 


9.7 


12 


8.7 


7.7 


6.0 


6.2 


21 


64 


17 


17 


44 


9.7 


9.7 


8.7 


7. 7 


6.0 


6.0 


74 


108 


16 


15 


25 


9.7 


10 


8.1 


7.7 


6.0 


6.0 


70 


94 


12 


12 


23 


9.7 


9.7 


■ 9.7 


7.7 


6.0 


6.0 


35 


73 


11 


12 


21 


9.7 


9.7 


11 


7.7 


6.0 


6.0 


25 


61 


9.0 




22 


9.7 


9.7 


11 


7.7 


14 


6.0 


16 


49 


7.4 




23 


28 


9.7 


12 


7.7 


12 


6.0 


15 


49 


8.1 




25 




9.7 




7. 7 


9.7 




12 


/ 



1913. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

2S 

29 

30 

31 



Monthly discharge of Huleia River near Lihue, Kauai, for 1912-13. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



May 7-31.. 

June 

July 

August 

September. 

October 

November. 
December.. 



9.0 
11 
40 
52 
61 
31 
40 
116 



The period. 



January. . . 
February. . 

March 

April 

May 

June 

July 

August 

September. 

October 

November- 
December.. 



1913. 



61 
174 
272 
30 
101 
191 
46 
14 
14 
191 
132 
80 



6.5 
6.4 
5.5 
6.5 
5.5 
5.5 
5.7 
9.0 



The year. 



7.2 
5.5 
5.5 
9.7 
9.7 
8.1 
7.7 
6.0 
6.0 
6.0 

12 

12 

5.5 



7.40 
7.45 
8.56 
7.92 
7.96 
8.03 
8.42 
31.8 



18.9 
21.5 
22.4 
17.0 
21.0 
34.0 
10.4 
7.6 
7.6 
29.0 
50.3 
30.3 

22.4 



367 
443 
526 
487 
474 
494 
501 
1,960 



5,250 



1,160 

1,190 

1,380 

1,010 

1,290 

2,020 

640 

467 

452 

1,780 

2,990 

1,860 

16,200 



ISLAND OF KAUAI. 



45 



HANAMAULU EIVER AT KAPAIA, NEAR LIHUE, KAUAI. 

Location. — At wagon-road bridge about 600 feet north of village of Kapaia and about 

1.5 miles north of Lihue. 
Records available. — September 4, 1911, to December 31, 1913. 
Drainage area. — 6.41 square miles. 
Gage. — Vertical staff. 
Control. — Probably permanent. 
Discharge measurements. — Made from lower side of bridge during high water 

and by wading at low- water stages. 
Diversions. — Several above station. 
Accuracy. — Records for May and June, good; for all other months, only fair. 

Discharge measurements of Hanamaulu River at Kapaia, near Lihue, Kauai, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 




D. E. Horner 


Feet. 
5.30 
5.54 


Sec.-ft. 
12.3 
17.6 


May 31 
May 31 


W. "V. Hardy 


Feet. 
5.69 
5.62 


Sec. ft. 
24.2 


May 31 


W.V.Hardy 


do 


21.6 



Daily discharge, in second-feet, of Hanamaulu River at Kapaia, Lihue, Kauai, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dee. 


1 


25 
30 
23 
23 
19 

15 

11 

11 
8.7 
8.7 

7.7 
12 
17 
12 
11 

9.7 
9.7 

11 

10 
9.7 

9.7 
15 
12 
12 
11 

12 
12 

9.7 
12 
12 

9.9 


9.7 
9.2 
8.7 
11 
9.7 

96 
47 
29 
24 
18 

9.8 

8.1 
7.5 

14 

16 

14 
13 
13 
20 
13 

16 
16 
26 
35 
16 

19 
25 
22 


20 

14 
8.5 
3.0 
1.5 

4.2 
3.4 
4.6 
4.7 

4.8 

3.8 
3.8 
4.6 
5.0 
4.6 

5.6 
6.5 

5.8 
4.2 
4.4 

5.0 
4.6 

12 

19 

20 

22 
20 
12 
12 
13 
19 


21 
19 
20 
16 
9.8 

8.5 
8.5 
9.8 
11 
8.5 

9.8 
7.5 
6.2 
5.0 
2.5 

5.0 
16 
6.5 
5.0 
3.8 

2.5 
2.5 
6.0 
7.5 

8.5 

6.5 

10 

14 
7.5 
7.5 


6.5 
7.5 
8.1 
7.3 
6.5 

5.0 
1.0 
5.0 
5.0 
6.5 

18 
29 
41 
30 
41 

30 
41 
36 
30 

24 

25 
30 
24 
30 

28 

25 
22 
15 
7.5 
11 
20 


19 

18 
82 
35 
30 

41 
35 
33 
31 
36 

25 
13 
14 
20 

18 

17 
16 
14 
25 
5 

1 
.5 
(a) 
(o) 
(a) 

(a) 

5 
12 

8 

5 


5 

5 

8.5 
11 
14 

10 
5 
4 
6 
5 

4 

5 
10 
16 

7.5 

13 

17 
9.8 
6.5 

7 

7.5 

6.5 

5 

4 

5 

7.5 
7.5 
7.5 
7.1 
9.2 
8.5 


13 
13 

9.8 
6.5 

5.8 

5.8 
5.6 
5.3 
5.0 
3.2 

1.5 
3.0 
3.0 
1.5 
1.0 

1.5 
2.8 
4.0 
1.0 
3.0 

1.0 
1.2 
1.5 
1.5 
1.5 

1.5 

1.6 
3.5 

16 

19 

10 


1.8 
1.5 
4.0 
3.0 
2.5 

4.0 
3.0 
2.0 
1.8 

1.8 

2.0 
2.0 
1.8 
1.9 
2.0 

2.5 
3.0 
2.0 
1.5 
1.0 

4.2 
7.5 
5.8 
6.5 
2.0 

2.5 
2.5 
7.8 
13 
4.0 


3.0 
3.0 
3.0 
3.0 
2.0 

1.0 

.5 

1.0 

21 

7.5 

2.0 
2.5 
3.0 
1.5 
13 

8.5 
6.5 

25 
19 
13 

14 
11 
25 
54 
25 

25 
25 
30 
25 
44 
41 


47 
41 
35 
35 
30 

34 
22 
21 
12 
3 

3.5 
9.8 

16 

11 
3 

4 
5 

20 
30 
61 

168 
47 
41 
35 
35 

34 
28 
30 
24 
24 


25 


2 


20 


3 


54 


4 


25 


5 


22 


6 


28 


7 


24 


8 


20 


9 


13 


10 


11 


11 


11 


12 


11 


13 


16 


14 


14 


15 


12 


16 


11 


17 


13 


18 


8.5 


19 


9.8 


20 


9.8 


21 


7.4 


22 


5.0 


23 


8.5 


24 . 


9.8 


25 


9.2 


26 


8.5 


27 


7.5 


28 


7.0 


29 


6.5 


30 


11 


31 


11 







a No discharge June 23-26. 
Note. — Discharge estimated for Sundays and holidays, on which no observations were made. 



46 WATER RESOURCES OF HAWAH; 1913. 

Monthly discharge of Hanamaulu River at Kapaia, near Lihue, Kauai, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Eun-ofE 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February. . 

March 

April 

May 

Jime 

July 

August 

September. 

October 

November. 
December. . 



30 
96 
22 
21 
41 
82 
17 
19 
13 
64 
168 
54 



(a) 



7.7 
7.5 
1.5 
2.5 
1.0 
I 

4.0 
1.0 
1.0 
.5 
3.0 
5.0 



13.3 
20.2 
8.89 
9.03 
19.9 
18.6 
7.86 
4.95 
3.36 
14.8 
30.3 
14.5 



818 

1,120 

647 

637 

1,220 

1,110 

483 

304 

200 

910 

1,800 

892 



The year. 



168 



(a) 



13.7 



9,940 



o Channel dry. 

SOUTH FORK OF WAILUA RIVER ABOVE WAIEHU FALLS, NEAR LIHUE, 

KAUAI. 

Location. — One mile above Waiehu Falls and about 7 miles northeast of Lihue. 
Records available. — December 10, 1911, to December 31, 1913. 
Drainage area. — 22.4 square miles. 
Gage. — Friez water-stage recorder. 
Control. — Probably permanent. 

Discharge measurements. — ^Made from cable or by wading. 
Diversions. — Several above station. 

Accuracy. — Records good except for November and December, when they were only 
fair. 



Discharge measurements of South Fork of Wailua River above Waiehu Falls, near Lihue, 

Kauai, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Feb. 23 


D. E. Homer. 


Feet. 
3.61 
3.56 


Sec.-ft. 
79.0 
76.6 


May 30 


W. V. Hardy . . 


Feet. 
4.12 


Sec.-ft. 
192 


23 


do 







ISLAND OF KAUAI. 



47 



Daily discharge, in second-feet, of South Fork of Wailua River above Waiehu Falls, near 

Lihue, Kauai, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


87 
66 
56 
54 
54 

66 
56 
239 
116 

228 

184 
292 
760 
242 
593 

458 
181 
142 
120 
98 

144 
449 

187 
359 
154 

105 
105 
64 
100 
56 
76 


58 
50 
42 
40 
40 

608 
363 
184 
109 
109 

120 

87 
74 
68 
94 

116 
66 
98 

133 

94 

80 
72 
76 
162 

74 

62 
60 

74 


54 
53 
51 
45 
42 

40 
124 

98 
74 
64 

60 
56 
96 
96 
53 

45 
89 
64 
68 

87 

98 
102 
210 
142 
184 

135 
60 
66 

120 
98 
87 


127 
118 
113 
111 

83 

72 
60 
58 
157 
72 

72 

48 

343 

256 

253 

• 118 

239 

219 

150 

98 

94 
78 

138 
80 

288 

120 
83 
83 
118 
225 


116 
204 
162 
131 
96 

173 
173 
384 
150 
116 

295 
677 
663 
225 
462 

288 
246 
256 
152 
127 

116 

107 
87 

100 
78 

72 
74 
74 
76 
201 
76 


58 

68 

1,150 

295 

204 

189 
135 
109 
127 
116 

154 
105 
154 
138 
120 

160 
98 
107 
184 
111 

105 
56 
56 
48 
63 

94 
201 
195 
109 
113 


192 
453 
162 
173 
192 

98 
76 
72 
76 
60 

56 
60 
154 
83 
76 

72 
66 
56 
68 
107 

70 
54 
48 
54 
138 

242 
120 
76 
131 
78 
74 


129 
80 

45 
40 
37 

37 
48 
45 
43 
42 

40 
53 
87 
80 
66 

46 
40 
36 
38 
40 

150 

64 
48 
45 
74 

60 
43 
98 
278 
120 
274 


204 

270 

225 

98 

91 

201 
138 
80 
66 

58 

53 
46 
40 
42 
56 

46 
40 
37 
40 
34 

26 
38 
13 
19 
24 

24 
14 
14 
14 
17 


15 
19 
23 
25 
23 

109 
94 
838 
774 
232 

195 

164 
242 
167 
207 

152 
157 
181 
131 
107 

189 
253 
127 
219 
162 

131 
109 
213 
124 
131 
131 


109 
116 
105 
105 
106 

107 
108 
109 
335 
418 

792 
1,060 
925 
375 
267 

253 
219 
204 
962 




2 




3 




4 




5 




6 




7 




8 




9 




10 


128 


11 


135 


12 


130 


13 


130 


14 


119 


15 


116 


16 


112 


17 


110 


18 


112 


19 


101 


20 


88 


21 


92 


22: 


92 


23 


92 


24 


88 


25 


85 


26 .... 


88 


27 


79 


28 - - 


85 


29 


66 


30 


68 


31 


66 







Note.— Evidences point to a maximum discharge of about 4,500 second-feet on the night of Nov. 20. 
No record Nov. 20 to Dee. 9. Discharge interpolated Nov. 5-7. 

Monthly discharge of South Fork of Wailua River above Waiehu Falls, near Lihue, Kauai, 

for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Eun-ofI 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 1-19 . . . 
December 10-31... 

The period. 



760 
608 
210 
343 
677 

1,150 
453 
278 
270 
838 

1,060 
135 



36 
13 
15 
105 
66 



190 
115 

85.8 
136 
199 
160 
111 

75 

68.9 
182 
351 

99.2 



11,700 
6,390 
5,280 
8,090 

12,200 
9,520 
6,820 
4,610 
4,100 

11,200 

13,200 
4,320 

97, 400 



48 



WATER EESOUECES OF HAWAII^ 1913. 



HANAMAULU DITCH NEAR LIHUE, KAUAI. 



Location. — ^About 6 miles northwest of Lihue, in flume 180 feet above point where 
the Kauai Electric Co.'s power line crosses the South Fork of Wailua River. 

Records available. — ^July 1, 1910, to December 31, 1913. 

Gage. — ^Vertical staff installed September 30, 1911, on left side of flume, 13 feet from 
upper end; new datum. 

Control. — Probably permanent. 

Discharge measurements. — ^Made in flume. 

Diversion. — Ditch diverts part of flow of the South Fork of Wailua River. 

Accuracy. — Records very good. 

The following discharge measurement was made by D. E. Horner: 
January 31, 1913: Gage height, 2.14 feet; discharge, 38 second-feet. 

Daily discharge, in second-feet, of Hanamaulu ditch near Lihue, Kauai, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July.' 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


38 
38 
38 
27 

27 

27 
32 
32 
35 
35 

36 
41 
41 
40 
40 

39 
38 
38 

38 
38 

38 

47 
47 
40 
40 

38 
38 
38 
37 
36 
36 


35 
38 

44 
42 
42 

47 
41 
32 
32 
14 

14 
32 
30 
30 
30 

30 
30 
30 

28 
28 

28 
28 
28 
32 
29 

28 
28 

28 


28 
28 
27 
27 
41 

41 

42 
42 
41 
41 

41 
38 
36 
36 
36 

38 
38 
40 
40 
40 

40 
40 
42 
24 
40 

40 
32 
32 
32 
32 
32 


32 
32 
32 
32 
30 

29 
29 
29 
32 
32 

40 
40 
41 
40 
40 

40 
40 
40 
40 
38 

38 
36 
38 
38 

47 

34 
34 
32 
32 
32 


32 
32 
41 
41 
40 

40 
41 
40 
40 
40 

32 
32 
32 
32 
22 

22 
22 
15 
15 
14 

29 
29 
29 
29 
29 

29 
38 
38 
39 
41 
41 


41 

41 

33 
9.2 
9.2 

9.2 
9.2 

40 

39 

39 

38 
39 
39 
39 
39 

39 
39 
39 
39 
35 

35 

38 
38 
38 
41 

40 
40 
40 
40 
40 


40 
39 
39 
40 
40 

40 
40 
40 
39 
39 

38 
38 
36 
36 
36 

36 
36 
36 
36 
40 

40 
35 
35 
44 
44 

45 
41 
41 
36 
36 
36 


38 
36 
36 
38 
38 

56 
38 
38 
38 
35 

35 
35 
40 
40 
40 

40 
39 
39 
39 
39 

40 
39 
38 
38 
38 

38 
38 
38 
40 
37 
37 


37 
38 
38 
37 
37 

39 
40 
40 
38 
38 

38 
40 
40 
36 
35 

35 
35 
35 
36 
36 

36 
40 
40 
40 
40 

39 
38 
38 
39 
38 


41 
38 
34 
32 
32 

41 
47 
47 
33 
32 

41 
41 
35 
34 
34 

36 
36 
36 
24 
35 

36 
36 
36 
32 
32 

32 
32 
33 
32 
32 
32 


24 
23 
24 
15 
15 

15 
15 
15 
15 
15 

15 
11 
11 
12 
15 

15 
32 
32 
32 
33 

13 
13 

5' 

5 




2 




3 




4 




5 




6 




7 




8 




9 




10 


12 


11 


12 


12 


12 


13 


32 


14 


32 


15 


32 


16 


32 


17 


32 


18 


24 


19 


23 


20 


23 


21 


23 


22 


23 


23 


23 


24 


23 


25 


23 


26 


23 


27 ... 


23 


28 


32 


29 


32 


30 


32 


31 


32 







Note.— Ditch dry, Nov. 23-28 and Dec. 1-9. 



ISLAND OF KAUAI. 



49 



Monthly discharge of Hanamaulu ditch near Lihue, Kauai, for 1913. 



Month. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



Discharge in second-feet. 



Maximum. Minimum. Mean 



27 
14 
24 
29 
14 

9.2 
35 
35 
35 
24 











37:2 
31.4 
36.3 
35.6 
32.1 
34.8 
38.6 
38.6 
37.9 
35.3 
14.0 
17.9 



32.5 



Run-off 
(total in 
acre-feet). 



2,290 
1,740 
2,230 
2,120 
1,970 
2,070 
2,370 
2,370 
2,260 
2,170 
832 
1,100 



23,500 



Accu- 
racy. 



LIHUE DITCH NEAR LIHUE, KAUAI. 

Location. — About 5 miles northwest of Lihue, at point where Kauai Electric Co. 'a 

power line crosses the ditch. 
Records available.— July 1, 1910, to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 
Discharge measurements. — Made by wading. 

Diversion.— Ditch diverts part of flow of the South Fork of Wailua River. 
Accuracy. — Records fair. 

The following discharge measurement was made by W. V. Hardy and D. E. Homer: 
May 29, 1913: Gage height, 1.42 feet; discharge, 8.93 second-feet. 

Daily discharge, in second-feet, of Lihue ditch near Lihue, Kauai, for 1913. 



Dav. 



Jan. 



Feb. 



Mar. 



Apr. 



June. 



July. 



Aug. 



Sept. 



Oct. Nov. Dec 



1 

2 
3 

4 

5 

6 

7 
8, 
9 
10 

11 
12. 
13. 
1-1 

15. 

16. 
17. 
18. 
19. 
20. 

21. 
22. 
23. 
24. 
25. 

26. 
27. 
28. 
29 
30 
31, 



8.4 
8.4 
8.4 

8.4 
8.4 
9.6 
9.6 



10.0 
10.4 
10.6 

8.8 
8.8 



8.4 
8.4 



8.4 
10.4 



7.6 
7.2 
7.2 
7.2 
7.2 
7.2 



7.2 

7.2 
7.1 
6.8 



9.6 



4.4 
4.4 
4.0 
3.9 

3.8 
3.8 
3.8 
3.6 
3.6 

4.0 
4.0 
3.9 
4.4 
4.0 

3.8 
3.8 
3.8 



3.8 
3.8 
3.8 
3.8 
3.8 

7.2 
7.2 
7.2 
7.2 
7.2 

7.2 
7.2 
7.2 
7.2 
7.2 

7.6 
7.6 
8.0 
8.0 
8.0 

8.4 
8.5 
8.8 
8.0 
8.4 

8.0 

6.8 
6.8 
6.8 

8.8 
8.8 



8.0 
8.0 
8.0 

7.6 
7.6 
7.2 
7.6 
7.6 

8.0 
8.0 
8.8 
8.8 



8.8 
8.8 
8.0 

8.0 

8.0 
8.0 
8.0 



10.4 
10.4 
10.4 
10.4 
10.4 



10.4 
10.4 
10.4 
10.4 
10.4 

10.4 
10.4 
10.4 
10.4 
9.6 

9.6 
10.4 
8.0 
9.6 
9.6 

3.7 
3.7 
3.7 
3.7 
3.7 

.3.7 
8.0 
8.0 
8.0 
8.0 

9.6 
9.6 
9.6 

8.8 
8.9 
9.6 



9.2 
9.6 
3.7 



7.4 

7.2 
7.2 
9.0 
9.0 
9.0 

9.0 
9.8 



9.8 
9.8 



9.0 
9.0 
9.0 
9.0 
9.0 

9.7 
9.7 
9.8 
9.8 
9.6 



9.6 
9.6 
9.2 
9.5 



9.4 
9.4 
9.4 
9.0 
9.0 



9.2 
9.4 
9.4 
9.4 

9.4 
9.4 
9.4 
9.4 



9.8 



9.8 
10.4 

10.4 
10.4 
10.0 



9.8 



9.8 
10.0 
9.3 
9.1 
9.0 

9.0 



9.8 
8.9 

8.8 
8.8 
10.0 
9.6 
9.4 

10.0 
9.6 
9.0 
9.6 
9.8 

10.4 
10.4 
10.2 
9.6 
9.5 

9.6 
9.6 
9.8 
10.4 
10.8 
10.6 



10.2 
10. S 
10.7 
10.0 
11.2 

11.1 

10.4 
10.4 
10.2 
10.2 

9.6 
9.6 
10.4 
10.1 
10.1 

9.6 
9.6 
9.6 
9.6 
9.5 

10.1 
10.1 
10.1 
9.8 
9.6 

9.6 
9.4 
10.2 
10.0 
10.0 



10.2 
10.0 
9.6 
9.4 
9.4 

9.9 
10.9 
12.0 
10.4 

9.9 

11.4 
11.4 
11.2 
10.6 
10.6 

10.4 
10.6 
10.6 
3.7 
10.4 

10.4 
10.9 
10.0 
9.8 
9.9 

10.2 
10.4 
10.0 
10.0 
9.6 
9.6 



8.8 
8.8 
9.0 



6.6 
6.6 
6.6 
6.5 
6.5 

6.7 
7.4 
7.5 
7.4 
7.4 

7.4 
8.0 
8.0 
8.0 
8.0 

8.0 
6.4 
6.4 
6.4 
6.3 

6.2 
6.2 
6.4 
6.4 
7.0 



2.5 
2.5 
2.5 
2.5 

6.9 
6.9 
6.9 
7.0 
7.1 

7.1 

7.2 
7.2 
7.2 

7.2 
7.2 



Note.— Ditch dry Feb. 7-11, June 4, Dec. 1-16. 
97764°— wsp 373—15 4 



50 



WATER EESOXJECES OF HAWAII, 1913. 



Monthly discharge of Lihue ditch near Lihue, Kauai, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-ofl 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



10.6 
9.6 
8.8 
10.4 
10.4 
9.8 
10.4 
10.8 
11.2 
12.0 
9.0 
7.2 



12.0 



7.2 



3.8 

7.2 

3.7 



8.8 

8.8 

9.4 

3.7 

6.2 





8.66 
3.98 
7.04 
8.59 
8.41 
8.63 
9.52 
9.61 
10.1 
10.1 
7.26 
2.84 



7.92 



632 
221 
433 
Sll 
517 
513 
585 
591 
601 
621 
432 
175 



5,730 



NORTH FORK OF WAILUA RIVER NEAR LIHUE, KAUAI. 

Location. — About 12 miles north of Lihue and 300 feet below confluence of main and 

east branches of the stream. 
Records available. — August 1 to October 28, 1910; December 28, 1910, to December 

31, 1913. 
Drainage area. — 14.6 square miles. 

Gage. — Friez automatic water-stage recorder. Datum changed. 
Control. — Fairly permanent. 

Discharge measurements. — ^Made from wire suspension footbridge. 
Diversions. — Kanaha ditch diverts part of flow above the station. 
Accuracy. — Records fair from January to May; all other records good. 

The following discharge measurement was made by W. V. Hardy: 
May 29, 1913: Gage height, 0.52 foot; discharge, 39.7 feet. 

Daily discharge, in second-feet, of North Fori of Wailua River near Lihue, Kauai, for 1913. 



Jan. 



Feb. 



Apr. 



May. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



1 

2 
3 

4 
5 

6 
7 
8 
9 
10 

11 

12 
13 

14, 
15. 

16 
17, 
18, 
19, 
20, 

21, 
22, 
23. 
24. 
25. 

26. 
27. 
28. 
29. 
30. 
31, 



57 
54 
43 
36 
38 

37 
48 

130 
57 

108 

111 
182 
353 
128 
366 

192 
102 
78 
73 



122 
196 

85 
142 



27 
24 
23 
23 
22 

217 
132 
67 
50 



84 
81 
75 

66 
111 

44 



16 
15 
19 
18 
22 

25 
29 
32 
36 
39 

43 
53 
58 
229 
222 

172 
92 
72 
65 
53 
50 



81 
62 
64 
51 
35 

26 
23 
23 
51 
35 

43 

27 

130 

156 

147 

71 
1.53 
106 
81 
59 

54 
51 
61 
40 
132 

49 
38 
34 
37 
82 



39 
104 
54 
40 
30 



85 
106 
52 
41 

140 
232 
177 
111 



109 
73 
66 

58 
49 
46 
64 
49 

42 
45 
47 
47 
87 
45 



40 
58 
551 
146 
106 

109 
85 
70 
92 

84 

92 
63 
88 
70 
64 

70 
49 
54 
65 
60 

55 
38 
38 
34 
42 

66 
97 
114 



95 
267 
111 
119 
104 



56 
47 
43 

42 
47 
90 
63 
58 

54 
44 
36 
51 
77 

43 
37 
36 

38 
83 

108 
71 
40 
85 
43 
38 



42 
36 
34 
32 
32 

32 
35 
38 
42 
36 

32 
50 
47 
64 
41 

63 
42 
37 
49 
34 

58 
42 
34 
34 

45 

39 
35 
88 
171 



95 

182 
150 
,77 
60 

111 

83 
60 
54 
44 

41 
42 
38 
36 



33 
30 
27 
26 
25 

62 
57 
368 
178 
97 

120 
106 
144 

m 

84 



74 
77 
57 
49 

146 
132 

78 
155 
83 

65 
66 
112 



54 
116 
77 
67 
52 

67 
84 
62 
184 
213 

394 
590 
394 
173 
127 

106 
98 
100 
262 
353 

659 

424 
343 
289 
504 

420 
257 
218 
570 
303 



202 
168 
220 
213 
224 

200 
146 
124 
111 
103 

92 
90 

85 
78 
76 

73 
71 
71 
69 
69) 

62: 
64 

47' 
44 
42 

42; 
41 
40' 
36. 
32: 
35. 



Discharge estimated Mar. 16-20. 



ISLAND OF KAUAI. 51 

Monthly discharge of North ForTc of Wailua River near Lihue, Kauai, for 191S. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



366 
217 
229 
156 
232 
551 
267 
171 
182 
368 
659 
224 



103 
52.1 
64.6 
66.7 
77.3 
88.9 
70.1 
50.6 
53.1 
91.9 

251 
95.2 



6,330 
2,890 
3,970 
3,970 
4,750 
5,290 
4,310 
3,110 
3,160 
5,650 
14,900 
5,850 



64,200 



KANAKA DITCH NEAR LIHUE, KAUAI. 

Location. — About 9 miles north of Lihue and about 500 feet above the point where 

the Kauai Electric Co.'s power line crosses the ditch. 
Records available. — August 6, 1910, to December 31, 1913. 
Gage. — Vertical staff; datum changed. 

Discharge measurements. — Made in flume 100 feet above gage. 
Diversion. — Diverts part of flow of North Fork of Wailua River. 
Accuracy. — Records good. 

Discharge measurements of Kanaha ditch near Lihue, Kauai, in 1913. 



Date. 



Hydrographer. 



height. 



Dis- 
charge. 



May 28 a 
May 30 a 



D. E. Horner. 
W.V.Hardy. 



Feet. 
2.02 
2.43 



See. ft. 
27.9 
33.2 



a Measurements refer to gage installed May 2S. 



52 WATER KESOUECES OP HAWAII^ 1913. 

Daily discharge, in second-feet, of Kanaka ditch near Lihue, Kauai, for 1912-13. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jime. 


Ju]y. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1912. 
1 


24 

24 


21 
20 
20 
20 
20 

19 
19 
19 
25 

24 

24 
24 
24 
22 
22 

22 

24 
24 
24 
24 

22 
25 
25 
25 

28 

28 
28 
25 
25 

24 
24 
23 
23 
22 

25 
30 
28 
16 
16 

16 
16 

16 
15 

15 

15 
15 
13 
12 
12 

12 
12 
12 
15 
12 

12 
12 
12 


25 
25 

28 
27 
25 

25 
28 
27 
28 
28 

31 
31 
31 
30 

28 

27 
27 
26 
25 
25 

28 
28 
28 
22 

24 

24 
24 
22 
22 
25 
25 

12 
12 
12 
11 
11 

24 
33 
31 

28 
28 

28 
28 
28 
28 
28 

28 
28 
28 
30 
31 

31 
33 
33 
31 
32 

31 
30 
30 
29 
29 
29 


25 
24 
24 
25 

28 

27 
30 
30 
30 

28 

27 
27 
25 
25 
25 

27 
31 
22 
21 
21 

16 
16 
16 
25 

28 

24 
27 
27 

28 
28 

31 
31 
31 
31 
30 

29 
28 
28 
31 
31 

30 
30 
31 
31 
31 

31 
31 
31 
31 
30 

30 
28 
30 
31 
33 

33 
31 
31 
31 
33 


28 
27 
28 
33 
30 

28 
27 
30 
28 
27 

26 
25 
25 
28 
28 

28 
28 
28 
28 
28 

28 
28 
28 
29 
29 

29 
29 
31 
31 
30 
28 

31 
33 
33 
33 
32 

33 
32 
32 
31 
30 

33 
33 
33 
30 
30 

30 

27 
25 
24 
24 

21 
21 
21 
21 
21 

27 
25 
26 
29 
29 
29 


28 
27 

27 
27 
27 

28 
28 
28 
28 
28 

28 
28 
28 
28 
28 

28 
28 
27 
27 
27 

28 
30 
30 

28 
27 

27 
30 
28 
27 
27 

26 
30 
30 
26 
26 

28 
24 
25 
29 
25 

25 
25 
31 
31 
31 

31 
28 
29 
31 
31 

31 
31 
31 
29 
31 

31 
31 
32 
32 
32 


28 
28 
28 
28 
28 

28 
31 
33 
28 
33 

33 
33 
33 
35 
31 

28 
33 
39 
31 
31 

31 

28 
28 
28 
30 

31 
31 
31 
39 
33 
28 

32 
34 
32 
31 
31 

31 
31 
31 
30 
30 

28 
32 
32 
32 
32 

30 
30 
30 
30 
31 

31 
28 
29 
36 
36 

36 
34 
32 
31 
31 
31 


27 
30 
30 
30 
30 

39 
31 
33 
33 
33 

33 
33 
33 
35 
31 

33 
39 
31 
31 
31 

31 
39 
39 
39 
35 

33 
33 
33 
33 
35 
35 

29 
31 
31 

28 
28 

28 
28 
28 
31 
28 

26 
26 
32 
32 
32 

34 
26 
26 
29 
30 

34 
34 
32 
31 
31 

29 
29 
29 
35 
34 
34 


35 
35 
33 
33 
33 

35 
33 
33 
33 
33 

33 
30 
30 
30 
31 

32 
30 
28 
28 
31 

31 
32 
31 
30 

28 

28 
28 
27 
31 
32 

34 
31 
31 
31 
31 

■ 34 
32 
31 

■ 30 
30 

30 
28 
31 
30 

29 

29 
29 

28 
28 
28 

28 
29 
28 
28 
28 

28 
26 
27 
29 
30 


31 
30 
31 
31 

34 

32 
32 
33 
32 
32 

33 
33 
32 
31 
31 

30 
34 
33 
34 
34 

34 
34 
34 
33 
33 

35 
34 
34 
33 
31 
32 

28 
28 
26 
26 
26 

30 
32 
35 
32 
30 

30 

32 
34 
34 
32 

32 
32 
31 
31 
31 

32 
32 
32 
32 
32 

32 
32 
32 
32 
31 
31 


30 
31 
31 
31 
35 

35 
33 
33 
35 
34 

32 

30 
30 
30 
33 

29 
29 
32 
33 
34 

34 
35 

11 
11 
12 
33 
30 

31 
31 
31 
26 
25 

25 

25 
25 
25 
26 

26 
29 
26 
30 
30 

30 
30 
30 
30 
30 

29 
19 
19 
19 

18 

18 
18 
18 
18 
18 


32 


2 


35 


3 


33 


4 




11 


5 




11 


6 




11 


7 




10 


8 




11 


9 




11 


10 




22 


11 




22 


12 




22 


13 




22 


14 




21 


15 




21 


16 




21 


17 




27 


18 




27 


19 




30 


20 




31 


21 




29 


22 


21 
22 
22 
22 

21 
21 
21 
19 
19 
19 

22 
22 
21 
22 
22 

22 
22 
■ 28 
28 
29 

30 
31 
33 
30 
31 

33 

28 
24 
22 
22 

22 
35 
31 
31 
28 

28 
27 
27 
24 
23 
22 


30 


23 


29 


24 


30 


25 


28 


26 


27 


27 


27 


28 


24 


29 


22 


30 


22 


31 


22 


1913. 
1 




2 




3 




4 




6 




6 




7 




8 

9 




10 




11 




12 




13 


11 


14 


11 


15 


11 


16 


11 


17 


11 


18 


11 


19 


14 


20... 


14 


21 


14 


22 


14 


23 


16 


24 


16 


25 


16 


26 


16 


27 


16 


28 


20 


29 


23 


30 


24 


31 


24 







Note.— Channel dry Jan. 3-21, Nov. 23-25, 1912; Dec. 1-12, 1913. 



ISLAisTD OP KAtJAl. 53 

Monthly discharge of Kanaha ditch near Lihue, Kauai, for 1912-13. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean. 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



1912 

January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 

1913 

January 

February 

March 

April 

May 

June 

July 

August 

September 

October 1 

November 

December 13-31 

The year 



8.23 
23.2 
26.4 
25.2 
28.3 
27.8 
30.9 
33.3 
31.2 
32.6 
26.9 
23.2 



26.6 



26.4 
17.0 
26.6 
30.6 
27.4 
29.1 
SI. 5 
30.2 
29.5 
31.0 
25.2 
9.45 



506 
1,330 
1,620 
1,500 
1,740 
1,650 
1,900 
2,050 
1,860 
2,000 
1,600 
1,430 



19, 200 



1,620 
944 
1,640 
1,820 
1,680 
1,730 
1,940 
1,860 
1,760 
1,910 
1,500 
581 



36 



26.2 



19,000 



EAST BRANCH OF NORTH FORK OF WAILUA RIVER, NEAR LIHUE, KAUAI. 

Location. — About 8 miles nortli of Lihue, 600 feet above gaging station on the North 
Fork of Wailua, and 400 feet above the confluence of the North and East branches 
of the North Fork of Wailua River. 

Records available.— July 27, 1912, to December 31, 1913. 

Drainage area. — 6.2 square miles. 

Gage. — Inclined staff. 

Control. — Probably permanent. 

Discharge measurements. — ^Made by wading. 

Accuracy. — Records fair except for November, when broken records were obtained. 

Discharge measurements of East Branch of North Fork of Wailua River near Lihue, Kauai, 

in 1913. 



Date. 



Jan. 19 
May 29 



Hydrographcr. 



D. E. Horner. 
W. V. Hardy. 



Gage 
height 



Feet. 
6. .50 
6.30 



Dis- 
charge. 



Sec.-ft. 
46.7 
30.7 



54 



WATER EESOUECES OF HAWAII^ 1913. 



Daily discharge, in second-feet, of East Branch of North Forh of Wailua River, near Lihue, 

Kauai, for 1912-13. 



Day. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


Day. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1912. 
1 




26 
25 
24 
23 
22 

32 
36 
32 
32 

26 

24 
24 
24 
28 
32 


32 
41 
36 
32 
32 

52 
36 
30 
32 
26 

24 
24 
24 
23 
21 


41 
82 
82 
26 
24 

22 
23 
36 

28 
26 

100 
36 
30 

28 
26 


34 
28 
26 
37 

48 

41 
36 
38 
S9 
96 

34 
26 
26 
24 
26 


66 
49 
31 
14 
14 

100 
69 
68 
56 
55 

53 
51 
43 
41 
30 


1912. 
16 




36 
32 
25 
28 
26 

24 
24 
24 
23 
26 

32 
52 
32 
32 
41 
36 


20 
20 
20 
20 
24 

23 
23 
20 
19 
18 

17 
17 
18 
19 
20 


24 
32 
28 
43 
32 

66 
41 
36 
34 
33 

39 
34 
37 
39 

40 

39 


26 
23 
26 
39 
32 

48 
63 
76 
30 
28 

26 
24 
36 

47 
59 


32 


2 




17..;;.;:;:.. 




32 


3 ... 




18 . .. 




32 


4 




19 




30 


5 




20 




55 


6 




21 




14 


7 




22 




179 


8 




23 




69 


9 




24 




65 


10 




25 




62 


11 




26 




58 


12 




27 


28 
28 
28 
36 
27 


52 


13 




28 


50 


14 




29 


24 


15 




30 


36 






31 


36 









Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec, 


1913. 
1 


34 
32 
32 
30 
39 

30 
28 
32 
32 
39 

46 
74 
71 
66 
79 

59 
55 
52 
41 
41 

41 
24 
56 
100 
52 

40 
41 
32 
32 
31 
30 


30 
29 
28 
26 
26 

24 
32 
41 
33 
41 

36 
36 
27 
26 
26 

35 
28 
28 
28 
28 

32 
31 
30 
32 

28 

26 
24 
23 


23 
24 
23 
18 
18 

20 
28 
32 
21 
31 

24 
24 
23 
24 
24 

18 
20 
23 
26 
28 

29 
30 
32 
24 
17 

12 
28 
44 
41 
34 
41 


41 
41 
41 
36 
32 

25 
30 
36 
36 
41 

26 
24 
26 
63 
100 

83 
66 
52 
52 

44 

41 
44 
46 
43 
41 

32 
32 
32 
41 
52 


41 
36 
36 
32 

41 

66 
69 
41 
32 
32 

34 
52 
46 
41 
41 

46 
52 
58 
41 
35 

34 
32 
32 
32 
32 

30 
30 
28 
24 
17 
24 


35 
24 
42 
69 
52 

45 
43 
40 
46 

48 

42 
41 
46 
41 
36 

52 
35 
34 
34 
32 

28 
26 
28 
28 
26 

26 
32 
58 
30 
43 


41 
47 
S3 
59 
56 

36 
34 
32 
30 
28 

32 
32 
35 
31 
30 

26 
24 
30 
30 
26 

36 
26 
24 
29 

24 

52 
32 
32 
32 
30 
26 


29 
26 
22 
24 
24 

25 
24 
24 
32 
24 

26 
24 
35 
36 
38 

41 
27 
32 
26 
24 

35 
24 
27 
30 

24 

24 
24 
24 
56 
46 
41 


42 
42 
43 
44 
36 

40 
44 
32 
28 
24 

26 
24 
24 
24 
24 

23 
23 
20 
20 
20 

32 
26 
20 
19 
19 

18 
18 
31 
26 
22 


18 
18 
17 
17 
16 

36 

56 
50 
43 
36 

34 
46 
45 

44 
42 

41 
36 
35 
33 
32 

32 
41 
40 
36 
34 

33 
32 
37 
36 
32 
30 


70 
110 
30 
32 
30 

32 
44 
36 
27 
32 

43 
43 
44 

44 
44 

45 
61 
76 
92 
108 

123 
139 
154 
170 
151 

132 
114 
95 
82 
143 


133 


2 . .. 


123 


3 


113 


4 


102 


5 


92 


6 


82 


7 


82 


8 


62 


9 . . .. 


55 


10 


52 


11 


SO 


12 


48 


13 


41 


14 


112 


15. 


34 


16 


32 


17 


30 


18 


28 


19 


27 


20 


26 


21 


24 


22 . . 


26 


23 


24 


24 


24 


25 

26 


24 


27 


241 


28 




29 


23* 


30. . .- 


20 


31 


20 







Note. — Discharge estimated for following days on which no gage heights were recorded: 1912: Aug. 14; 
Sept. 13; Nov. 4, 21, 25, 28, and 29; Dec. 2, 3, 11, 24, and 25; 1913: Jan. 1, 10, and 30; Feb. 3, 7, and 19; 
Mar. 17-19, 24, and 27; Apr. 4, 7, 14, 16. and 22; June 3 and 18; July 2, 3, and 28; Aug. 15 and 23; Sept. 1-3, 
6, 15, 22, 29, and 30; Oct. 6, 15, 20, and 26; Nov. 1, 12-14, 17-23, and 25-27; Dec. 1-5, 16, 19, and 25. 



ISLAND OF KAUAI. 



55 



Monthly discharge of East Branch of North Fork of Wailua River near Lihue, Kauai, for 

1912-13. 



Month. 


Discharge in second-feet. 


Run-off 
(total in 
acre-feet). 


Accu- 


Maximum. 


Minimum. 


Mean. 


racy. 


1912. 
July 27-31 


36 
52 
52 

100 
96 

179 


27 
22 
17 
22 
23 
14 


29.4 
29.2 
25.4 
39.0 
38.7 
50.5 


291 
1,800 
1,510 
2,400 
2,300 
3,110 


B. 




B. 




B. 




B. 




B. 




B. 






1913. 
January 


100 
41 
44 

100 
66 
69 
59 
56 
44 
56 

170 

133 


28 
23 
12 
24 
17 
24 
24 
22 
18 
16 
27 
20 


44.9 
29.8 
25.9 
43.3 
38.0 
38.7 
34.0 
29.6 
27.8 
34.8 
78.2 
50.9 


2,760 
1,660 
1,590 
2,580 
2,340 
2,300 
2,090 
1,820 
1,650 
2,140 
4,650 
3,130 


B. 




B. 


March 


B. 




B. 


May 


B. 


June 


B. 


July 


B. 


August 


B 




B. 




B. 




C. 




B. 








170 


12 


39.7 


28,700 













KONOHIKI STREAM AT MAKAKUALELE WEIR (mAUKA), NEAR KEALIA, 

KAUAI. 

Location. — About 5 miles southwest of Kealia. 
Records available. — April 1, 1911, to December 31, 1913. 
Gage. — Vertical staff. 

Discharge measurements. — Made with 3-foot sharp-crested weir. 
Cooperation. — Station maintained and daily-discharge record furnished by the 
Makee Sugar Co. 

Discharge, in million gallons per day, of Konohiki Streavi at Makakualele weir (mauka), 
near Kealia, Kauai, for 1913. 



Day. Ja 


n. 


Feb. M 


ar. 


Apr. 


May. 


June. J a 


ly- 


Aug. Se 


pt. 


Oct. 


Nov. 


Dee. 


1 . . .. 


38 
38 
38 
38 
38 

38 
38 
38 
38 
38 

38 
38 
38 
38 
38 

38 
38 
38 
38 
38 

38 
38 
38 
38 
38 

38 
38 
38 
38 
38 
34 


0.38 

.38 
.38 
.38 
.38 

1.17 
.96 
.49 
.45 
.41 

.45 
.41 
.41 
.41 
.41 

.41 
.41 
.67 
.58 
.45 

.45 
.45 
.45 

.49 1 
.45 

.45 
.45 
.45 


45 
45 
45 
41 
41 

41 
41 
41 
41 
41 

41 
41 
41 
45 
41 

41 
41 
41 
41 
41 

41 
41 
58 
34 
91 

81 
71 
62 
62 
62 
54 


0.54 
.54 
.54 
.49 
.49 

.49 
.49 
.49 
.49 
.49 

.49 
.49 
.49 
.49 
.54 

.49 
.49 
.49 
.49 
.49 

.49 
.49 
.49 
.49 
.49 

.49 
.49 
.49 
.49 
.49 


0.49 
.49 
.49 
.49 
.49 

.49 

.54 
.54 
.54 
.49 

.49 

1.06 

1.17 

.91 

.67 

.58 
.62 
.58 
.58 
.49 

.49 
.49 
.58 
.58 
..58 

.58 
.54 
.54 
.54 
.54 
.54 


0.54 

.54 
3.79 
2.79 
2.21 

1.64 
1.28 
1.17 
1.40 
1.17 

1.06 
1.01 
1.01 

.96 

.96 

.96 
.96 
.96 
.96 
.96 

.86 
.86 
.86 

.86 ... 
.86 ... 

.86 ... 
.96 ... 
.96 

.86 
.86 


86 
86 
86 
86 
86 

81 
81 
81 
81 
81 

81 
81 
96 
86 
86 

81 
81 
81 
81 
81 

81 
81 
76 

ii 

71 
67 
67 


0.67 
.67 

.67 1 
.67 
.67 

.67 
.62 
.62 
.62 
.62 

.62 
.62 
.71 
.71 
.71 

.71 

.67 
.67 
.67 
.67 

.67 
.58 
.58 
.62 
.67 

.58 
.67 
.67 
.67 
.67 
.67 ... 


67 
67 
16 
96 
67 

67 
67 
67 
67 
62 

62 
02 
58 
58 
58 

58 
58 
58 
58 
58 

58 
58 
58 

58 
58 

58 
58 
76 
58 
58 


0.58 
.58 
.54 
.58 
.58 

.49 
.49 
.49 
.62 
.62 

.54 
.54 
.54 
.54 
.54 

.54 

.86 
.71 
.71 
.67 

.58 
.58 
.62 
.76 
.67 

.67 
.62 
.62 
.76 
.67 
.67 


0.62 
.62 
.62 
.62 

.62 

.71 
.71 
.71 
.71 
.62 

.58 
.58 
.58 
.58 
.54 

.54 
.54 
.54 
.62 
.76 

18.3 
6.47 
2.57 
2.57 
2.36 

1.95 

1.95 

1.95 

.62 

.62 


1.95 


2 

3 


2.79 
3.01 


4 


3.01 


5 


2.29 


6 


2.09 


7 


2.09 


8 


2.71 


9 


2.71 


10 

11 


2.21 
2.09 


12. 


2.02 


13 

14 

15 

16 


1.89 
1.83 
1.83 

1.76 


17. 


1.64 


18 

19 


1.52 
1.52 


20 


1.64 


21 


1.52 


22 


1.52 


23 


1.46 


24 


1.46 


25 


1.46 


26 


1.40 


27 


1.40 


28 


1.34 


29 


1.34 


30 


1 34 


31 


1.34 



Note.— No record July 24-27. 



56 



WATEE EESOUKCES OP HAWAII, 1913. 



Monthly discharge of KonohiM Stream at Makakualele weir {mauha), near Kealia, Kauai, ' 

for 1913. 



Month. 



Discharge m million gallons per 
day. 



Maximum. Minimum. Mean. 



Run-off 

(total in 

acre-feet). 



January 

February 

March 

April 

May 

June 

July 1-23, 28-31 

August 

September 

October 

NoTcmber 

December 

The period (361 days) 



0.38 
1.17 
1.34 

.54 
1.17 
3.79 

.86 

.71 
1.16 

.86 
18.3 
3.01 



0.34 
.38 
.41 
.49 
.49 
.54 
.67 
.58 
.58 
.49 
.54 

1.34 



.34 



0.38 
.47 
.51 
.50 
.59 

1.17 
.81 
.66 
.64 
.61 

1.72 

1.88 



.83 



36 

40 

49 

46 

56 

108 

67 

63 

59 

58 

158 

179 



Note. — Mean for July is for 27 days. 



SOUTH FORK OF KAEHULUA STREAM AT WAINAMUAMU WEIR, NEAR 

KEALIA, KAUAI. 

Location. — About 5 miles southwest of Kealia. 
Records available. — April 1, 1911, to December 31, 1913. 
Gage. — Vertical staff. 

Discharge measurements. — ^Made with a 3-foot sharp-crested weir. 
Cooperation. — Station maintained and daily-discharge record furnished by the 
Makee Sugar Co. 

Discharge, m million gallons per day, of South Fork of Kaehulua Stream at Waina- 
muamu weir, near Kealia, Kauai, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


0.30 
.30 
.30 
.30 
.30 

.30 
.30 
.30 
.30 
.30 

.27 
.27 
.27 
.27 
.27 

.27 
.27 
.27 
.27 
.27 

.27 
.27 
.27 
.27 
.27 

.27 
.27 
.27 
.27 
.27 
.27 


0.27 
.27 
.27 
.27 
.27 

.58 
.49 
.41 
.38 
.38 

.34 
.34 
.34 
.34 
.34 

.34 
.30 
.38 
.34 
.30 

.30 
.30 
.30 
.34 
.30 

.30 
.30 
.30 


0.30 
.30 
.30 
.30 
.30 

.30 
.30 
.30 
.30 
.30 

.30 
.30 
.30 
.30 
.30 

.30 
.30 
.30 
.30 
.30 

.30 
.30 
.41 

.58 
.54 

.41 
.38 
.34 
.34 
.34 
.30 


0.30 
.30 
.30 
.30 
.30 

.30 
.30 
.30 
.30 
.30 

.30 
.30 
.30 
.30 
.30 

.30 
.30 
.30 
.30 
.30 

.30 
.30 
.30 
.30 
.30 

.30 
.30 
.30 
.30 
.30 
.30 


0.30 
.30 
.30 
.30 
.30 

.30 
.30 
.30 
.30 
.30 

.30 
.45 
.49 
.81 
.34 

.30 
.30 
.30 
.30 
.30 

.30 
.30 
.30 
.30 
.30 

.30 

.27 
.27 
.27 
.27 
.27 


0.27 

.27 

1.34 

1.06 

.86 

.76 
.49 
.49 
.45 
.45 

.41 
.41 
.41 
.38 
.38 

.38 
.38 
.38 
.38 
.38 

.38 
.38 
.38 
.38 
.38 

.38 
.38 
.38 
.38 
.38 


0.38 
.38 
.38 
.38 
.38 

.34 

""Mi" 

.34 

""'."so" 

1.17 
.34 

.34 
.34 
1.70 
.34 
.34 
.30 


1.64 
.91 

.38 
.38 
.38 

.38 
2.29 
.38 
.38 
.38 

.38 
.38 
.38 
.58 
.58 

.58 
.58 
.49 
.45 
.45 

.45 
.62 
.62 
.62 
.62 

.68 
.58 
.58 
.58 
.58 
.58 


0.58 
.67 
.67 
.67 
.58 

.58 
.58 
.58 
.58 
.58 

.58 
.58 
.54 
.54 
.54 

.54 
.54 
.54 
.54 
.54 

.54 
.54 
.49 
.49 
.49 

.49 
.58 
.62 
.49 
.49 


0.49 
.49 
.45 
.41 
.41 

.41 

.45 
.45 
.58 
.58 

.58 
.58 
.58 
.58 
.58 

.58 
.96 
.76 
.76 
.71 

.62 
.58 
.67 
.81 
.71 

.71 
.67 
.58 
.71 
.76 
.76 


0.62 
.67 
.58 
.58 
.58 

.58 
.58 
.58 
.58 
.58 

.58 
.58 
.58 
.58 
.58 

.58 
.58 
.58 
.58 
.58 

.58 
.58 
.58 
.58 
.58 

.58 
.58 
.58 
.58 
.58 


0.58 


2 


.58 


3 


.58 


4 


.58 


5 


.58 


6 


.58 


7 


.58 


8 


.58 


9 


.58 


10 


.58 


11 


.58 


12 


.58 


13 


.58 


14 


.58 


15. 


.58 


16 


.58 


17 


.58 


18 


.58 


19 


,.58 


20 


.58 


21 


.58 


22 


.58 


23 


.58 


24 


.58 


25. 


.58 


26 


.58 


27. 


.58 


28 


.58 


29 


.58 


30 


.58 


31 


.58 







Note.— No record July 7-12, 15-22. 



ISLAND OF KAUAI. 



51 



Monthly discharge of South Fork of Kaehulua Stream at Wainamuamu weir, near 

Kealia, Kauai, for 1913. 



Month. 



Discharge ui million gallons per 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



January 

Februaiy 

March 

April 

May 

June 

July 1-6, 13-14, 23-31 

August 

September 

October 

November 

December 

The period (351 days) 



0.30 

.58 

.58 

.30 

.81 

1.34 

1.70 

2.29 

.67 

.96 

.67 

.58 



2.29 



0.27 
.27 
.30 
.30 
.27 
.27 
.30 
.38 
.49 
.41 
.57 
.58 



.27 



0.28 
.34 
.33 
.30 
.32 
.46 
.48 
.61 
.56 
.61 
.58 
.58 



.45 



490 



KAEHULUA STREAM AT KUHINOA WEIR, NEAR KEALIA, KAUAI. 

Location. — ^About 3 miles southwest of Kealia. 
Records available. — May 1, 1911, to December 31, 1913. 
Gage. — ^Vertical staff. 

Discharge measurements. — ^Made with. 6.5-foot sharp-crested weir. 
Cooperation. — Station maintained and daily-discharge record furnished by Makee 
Sugar Co. 

Discharge, in million gallons per day, of Kaehulua Stream at Kuhinoa weir, near 

Kealia, Kauai, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


0.04 
.04 
.04 
.04 
.07 

.07 
.11 
.12 

.07 
.12 

.12 
.12 
.12 
.12 
.12 

.26 
.44 
.44 
.12 
.12 

.12 
.12 
.58 
. .12 
.12 

.12 
.12 
.12 
.12 
.12 
.12 


0.12 
.12 
.12 
.12 
.12 

.44 
.44 
.44 
.44 
.44 

.44 
.44 
.44 
.44 
.44 

.12 
.12 
.12 
.12 
.12 

.12 
.12 
.24 
.24 
.24 

.24 
.24 
.24 


0.44 
.12 
.12 
.12 
.12 

.12 
.12 
.12 
.12 
.12 

.12 
.12 
.12 
.12 
.12 

.12 
.12 
.12 
.12 

.12 

.12 
.12 
.44 

.44 
.44 

.44 
.44 
.44 
.44 
.12 
.12 


0.12 
.12 
.12 
.12 
.12 

.12 
.12 
.12 
.12 
.12 

.04 
.04 
.04 
.04 
.11 

.11 

.04 
.04 
.07 

.07 

.07 
.12 
.12 
.32 
.26 

.26 
.21 
.21 
.21 
.32 


0.44 
.38 
.26 
.21 
.12 

.12 
.26 
.12 
.21 
.21 

.21 

.81 

2.54 

2.08 

1.86 

1.86 

1.86 

.81 

.81 

1.16 

.44 
.21 
.12 
.12 
.12 

.12 
.12 
.12 
.12 
.12 
.12 


0.12 

.12 

9.14 

9.14 

11.1 

3.96 
3.82 
1.26 
1.16 

.90 

.58 
.44 
.38 
.32 
.38 

.51 
.32 
.32 
.32 
.32 

.32 
.26 
.21 
.32 
.26 

.21 
.12 
.12 
.12 
.21 


0.21 
.26 
.81 
.66 
.58 

.73 
.44 
.38 
.26 
.26 

.26 
.26 
.26 
.26 
.21 

.21 
.12 
.12 
.12 
.12 

.12 
.21 
.12 
.12 
.12 

.12 
.12 
.12 
.12 

.12 

.12 


0.12 
.12 
.12 
.12 
.12 

.12 
.12 
.12 
.12 
.12 

.12 
.11 
.11 
.07 
.07 

.07 
.07 
.04 
.04 
.04 

.04 
.04 
.04 
.04 
.04 

.04 
.04 
.04 
.04 
.04 
.04 


0.11 
.11 
.12 
.12 
.12 

.12 
.12 
.12 
.12 
.12 

.11 
.11 

.07 
.07 
.07 

.07 
.07 
.07 
.07 
.07 

.07 
.07 
.07 
.07 
.04 

.04 
.04 
.12 
.12 
.12 


0.07 
.07 
.07 
.07 
.07 

.12 
.12 
.12 
.12 
.12 

.12 
.12 
.12 
.12 
.12 

.12 
.32 
.26 
.26 
.21 

.21 
.21 
.44 
.44 
.44 

.44 
.44 
.44 

.58 
.58 
.58 


0.44 
.44 
.32 
.26 
.26 

.26 
.44 
.51 
.51 
.44 

.32 
.26 

.44 
.44 
.58 

.58 
.58 
.58 
.73 
1.07 

39.7 
14.0 
6.52 
6.52 
4.96 

1.26 
.81 
.81 
.81 
.81 


6.52 


2 


4.96 


3 


6.52 


4 


5.72 


5 


3.55 


6 




7 


3.55 


8 


4.96 


9 


4.23 


10 


4.38 


11 


3.82 


12 


2.91 


13 


3.55 


14 


3.55 


15 


3 55 


16 ... 


2.91 


17 


2.91 


18 . . 


3 55 


19 


6.52 


20 


3.55 


21 


3.55 


22 


3.55 


23 


3.55 


24 


2.91 


25 


2 91 


26 


2.91 


27 


.44 


28 


.44 


29 


.44 


30 


44 


31 


.44 







58 Water eesoueces op Hawaii^ 1^13. 

Monthly discharge of Kaehulua Stream at Kuhinoa weir, near Kealia, Kauai, for 1913. 



Month.. 



Discharge in million gallons per 



Maximum. Minimum. Mean, 



Run-off 
(total in 
acre-feet). 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The vear 



0.58 

.44 

.44 

.32 

2.54 

11.1 

.81 

.12 

.12 

.58 

39.7 

6.52 



0.04 
.12 
.12 
.04 
.12 
.12 
.12 
.04 
.04 
.07 
.26 
.44 



0.14 
.26 
.20 
.13 
.58 

1.56 
.26 
.08 
.09 
.24 

2.86 

3.43 



39.7 



.04 



.82 



13 
22 
19 
12 
55 
144 
25 



23 
263 
326 



918 



NORTH FORK OF KEAHULUA STREAM AT KAINAHOLA WEIR, NEAR 

KEALIA, KAUAI. 

Location. — About 3 miles southwest of Kealia. 
Records available. — April 1, 1911, to December 31, 1913. 
Gage. — Vertical staff. 

Discharge measurements. — ^Made with 3-foot sharp-crested weir. 
Cooperation. — Station maintained and daily-discharge record furnished by the 
Makee Sugar Co. 

Daily discharge, in million gallons per day, of North Fork of Kaehulua Stream at Kaina- 
hola weir, near Kealia, Kauai, for 1913. 



Day. 


Jan. 


Feb. 


Mai-. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


0.41 

.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 

.41 
.41 

.41 
.41 
.41 

.41 
.41 
.41 

.41 
.41 

.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 
.41 


0.41 
.41 
.41 
.41 
.41 

.49 
.54 
.45 
.41 
.41 

.41 
.41 
.41 

.41 
.41 

.41 
.41 

.58 
.45 
.41 

.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 


0.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 

.41 
.41 

.38 
.38 
.38 
.38 

.38 

.38 
.38 
.38 
.38 
.38 

.38 
.38 
.58 
.49 
.41 

.41 

.41 
.41 
.41 
.41 
.41 


0.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 

.41 

.41 
.49 
.49 
.41 
.41 

.41 

.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 
.41 


0.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 
.49 
.41 

.41 
.45 
.41 
.41 
.41 

.41 
.41 
.41 

.41 
.41 

.41 
.41 

.41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 
.41 


0.41 
.41 
.96 

.58 
.58 

.49 
.49 
.41 
.41 
.41 

.41 
.41 
.41 

.41 
.41 

.41 
.41 
.41 

.41 
.41 

.41 
.41 
.41 

.41 
.41 

.41 
.41 
.41 
.41 
.41 


0.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 

.41 
.41 

.41 
.41 
.41 
.41 

.41 

.41 
.41 
.41 

.41 
.41 

.41 
.41 
.41 
.41 
.41 
.41 


0.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 

.41 

.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 
.41 


0.41 
.41 
.49 
.41 
.41 

.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 

.41 
.41 
41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 

.41 
.41 
.58 
.41 
.41 


0.41 
.41 
.41 

.41 
.41 

.41 
.41 
.41 

.41 
.41 

.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 
.41 
.41 


0.41 
.41 
.41 
.41 
.41 

.41 
.41 
.41 

.49 
.41 

.41 

.41 
.41 
.41 
.41 

.41 
.41 
.41 
.41 

.58 

.67 
.62 
.58 
.58 
.58 

.49 
.41 
.41 
.41 
.41 


0.81 


2 


.58 


3 


.62 


4 


1.01 


5 


.81 


6 


.58 


7 


.49 


8 


.49 


9 


.41 


10 


.41 


11 


.41 


12 


.41 


13 . .. . 


.41 


14 


.41 


15 


.41 


16 


.41 


17 


.41 


18 


.41 


19 .... 


.41 


20 


.41 


21 


.41 


22 


.41 


23 


.41 


24 . 


.41 


25 


.41 


26 


.41 


27 


.41 


28 


.41 


29 


.41 


30 


.41 


31 


.41 







ISLAKi) OF KAtTAi. 



50 



Monthly discharge of North Fork of Kaehulua Stream at Kainahola weir, near Kealia, 

Kauai, for 1913. 



Month. 


Discharge in million gallons per day. 


Run-off 

(total in 

acre-feet). 


Maximum. 


Minimum. 


Mean. 




0.41 
.58 
.58 
.49 
.49 
.96 
.41 
.41 
.58 
.41 
.67 

1.01 


0.41 
.41 
.38 
.41 
.41 
.41 
.41 
.41 
.41 
.41 
.41 
.41 


0.41 
.43 
.41 
.42 
.41 
.44 
.41 
.41 
.42 
.41 
.45 
.48 


39 




37 


Maroh ' 


39 




39 




39 


June 


41 


July 


39 




39 


September 


39 


October 


39 




41 


December 


46 






The year 


1.01 


.38 


.42 


477 



KAPAA RIVER NEAR KEALIA, KAUAI. 

Location. — About 1 mile above intake of Kapabi ditcb and 5 miles nortbwest of 

Kealia. 
Records available. — ^July 23, 1910, to December 31, 1913. 
Drainage area. — 3.6 square miles. 
G-age. — Vertical staff. 
Control. — Fairly permanent. 

Discharge measurements. — ^Made from wire suspension footbridge or by wading. 
Accuracy. — Records good except for November and December, when records were 

fair. 
Cooperation. — Station is maintained in cooperation witb the Makee Sugar Co. 

The following discharge measurement was made by W. V. Hardy: 
May 20, 1913: Gage height, 1.54 feet; discharge, 14.1 second-feet. 

Daily discharge, in second-feet, of Kapaa River near Kealia, Kauai, for 1913. 



Day. 



Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


17 


12 


12 


22 


13 


16 


23 


14 


32 


13 


15 


20 


12 


12 


20 


30 


153 


54 


15 


20 


13 


34 


15 


12 


12 


23 


14 


155 


24 


14 


44 


13 


24 


13 


12 


11 


20 


16 


78 


33 


13 


18 


13 


18 


13 


12 


11 


16 


13 


38 


33 


13 


17 


12 


18 


14 


158 


12 


14 


32 


38 


19 


13 


32 


23 


16 


18 


46 


24 


13 


23 


24 


17 


17 


20 


37 


36 


28 


21 


14 


13 


51 


20 


16 


16 


17 


30 


22 


19 


16 


13 


24 


27 


42 


17 


21 


16 


48 


115 


20 


14 


12 


17 


17 


23 


14 


16 


15 


17 


48 


17 


15 


11 


22 


16 


32 


15 


14 


14 


20 


44 


42 


13 


11 


14 


48 


20 


19 


17 


16 


19 


64 


96 


13 


13 


31 


115 


23 


33 


23 


14 


26 


60 


26 


12 


12 


45 


36 


22 


24 


41 


14 


19 


26 


21 


13 


11 


35 


21 


21 


17 


19 


14 


20 


20 


51 


14 


14 


20 


32 


24 


17 


31 


14 


18 


21 


21 


13 


13 


52 


39 


18 


16 


18 


13 


16 


21 


17 


86 


13 


29 


33 


18 


14 


14 


13 


36 


31 


16 


36 


13 


23 


19 


16 


19 


14 


13 


17 


71 


14 


36 


16 


17 


16 


14 


19 


14 


13 


15 


127 


64 


18 


19 


17 


15 


14 


17 


21 


15 


38 


631 


46 


18 


26 


17 


14 


14 


14 


17 


14 


168 


121 


19 


32 


95 


19 


13 


14 


14 


16 


13 


29 


62 


20 


28 


105 


15 


16 


13 


16 


17 


13 


20 


76 


18 


16 


121 


19 


16 


13 


22 


21 


12 


20 


127 


16 


14 


62 


14 


14 


22 


28 


21 


12 


18 


67 


16 


13 


24 


13 


13 


49 


27 


16 


12 


16 


51 


14 


13 


20 


13 


16 


37 


16 


22 


48 


41 


39 


14 




18 


15 


14 


20 


34 


44 


13 


21 


26 


13 





18 


15 


28 


37 


18 


34 


14 


17 


62 


12 




18 




15 




17 


30 




16 





Dec. 



1.. 
2.. 
3.. 

4.. 
5.. 

6.. 

7.. 
8.- 
9.. 
10.. 

11.. 
12.. 
13.. 
14.. 
15.- 

16-- 
17-. 
18.. 
19.. 
20.. 

21.. 
22.- 
23.. 
24.. 
25.. 

26.. 
27.. 
28-. 
29.. 
30.. 
31.. 



27 
21 
220 
139 

42 

60 
38 
29 
22 
20 

18 
17 
17 
16 
15 

13 
13 
14 
13 
13 

13 
13 
13 
12 
12 

12 
12 
12 
12 
12 
12 



60 WATER EESOUROES OF HAWAII, 1&13. 

Monthly discharge of Kapaa River near Kealia, Kauai, for 1913. 



Month. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



Discharge in second-feet. 



Maximum. Minimum. Mean 



96 

158 

121 

52 

115 

155 

54 

44 

48 

168 

631 

220 



24.2 
25.6 
25.4 
20.9 
25.3 
34.3 
21.5 
19.9 
17.8 
26.7 
69.8 
29.1 



28.2 



Run-off 
(total in 
acre-feet). 



1, 490 
1,420 
1,560 
1,240 
1,560 
2,040 
1,320 
1,220 
1,060 
1,640 
4,150 
1,790 



20,500 



Accu- 
racy. 



AKULIKULI SPRING NEAR KEALIA, KAUAI, 

Location. — About 5 miles west of Kealia. 
Records available. — April 1, 1911, to December 31, 1913. 
Gage. — ^Vertical staff. 

Discharge measurements. — ^Made witli a 3-foot sharp-crested weir. 
Cooperation. — Station maintained and daily-discharge record furnished by the 
Makee Sugar Co. 

Discharge, in million gallons per day, of Akulikuli Spring near Kealia, Kauai, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 

2 

3 


0.67 
.67 
.67 
.67 
.67 

.67 
.67 
.67 
.67 
.67 

.67 
.76 
.71 
.71 
.67 

3.39 

1.06 

.76 

.76 

.67 

.71 
.71 
.67 
.67 
.67 

.67 
.67 
.67 
.67 
.62 
.62 


0.62 
.62 
.62 
.62 
.62 

1..59 

2.08 

.81 

.67 

.67 

.67 
.67 
.67 
.67 
.67 

.67 
.67 
2.21 
.91 
.81 

.67 
.67 
.71 
.96 
.67 

.67 
.67 
.67 


0.67 
.67 
.62 

.58 
.58 

.58 
.58 
.58 
.58 
.58 

.58 
.58 
.58 
.58 
.58 

.58 
.58 
.58 
.58 
.58 

.58 

.71 

2.36 

1.06 

.81 

.81 
.71 
.71 
.71 
.67 
.67 


0.67 
.67 

.67 
.67 
.67 

.67 
.67 
.67 
.67 
.67 

.67 
.67 
.67 
.67 
.96 

.76 
1.52 
.86 
.67 
.67 

.67 
.67 
.67 
.67 
.67 

.67 
.67 
.67 
.67 
.67 


0.67 
.67 
.67 
.67 
.67 

.67 
1.06 

.81 
1.34 

.81 

.67 

1.34 

1.52 

.81 

.81 

.81 
.91 
.81 
.71 
.67 

.67 
.67 
.67 
.67 
.67 

.67 
.58 
.58 
.58 
.58 
.58 


0.58 
.58 
4.22 
3.63 
2.64 

1.95 

1.06 

.96 

1.06 

.81 

.71 
.67 

.67 
.67 
.67 

.67 
.67 
.67 
.67 
.67 

.67 
.67 
.67 
.67 
.67 

.67 
.67 
1.23 
.91 
.81 


0.67 
1.76 
1.34 
1.34 
.96 

.81 
.81 
.67 
.67 
.67 

.67 
.67 
.81 
.76 
.67 

.67 
.67 
.67 
.67 
.67 

.67 
.67 
.67 
.67 
.67 

.67 
.67 
.67 
.67 
.67 
.67 


0.67 
.67 
.67 
.6V 
.67 

.67 
.67 
.67 
.67 
.67 

.67 
.67 
.67 
.67 
.81 

.81 
.76 
.67 
.67 
.67 

.67 
.67 
.67 
.67 
.67 

.67 
.67 
.67 
.67 
.67 
.67 


0.76 

.71 

1.64 

1.28 

.67 

.67 
.67 
.67 
.67 
.67 

.67 
.67 
.67 
.67 
.67 

.67 
.67 
.67 
.62 
.62 

.62 
.62 
.62 
.62 
.62 

.62 
.62 
.96 
.67 
.67 


0.67 

.67 

.67 

, .62 

.58 

.58 
.67 
.67 
.67 
.67 

.67 
.67 
.67 
.67 
.67 

.67 
.67 
.67 
.67 
.67 

.67 
.67 
.76 
.67 
.67 

.67 
.67 
1.23 
1.28 
.67 
.67 


0.67 
.67 
.67 
.67 
.67 

.67 
.76 
.67 
.71 
.67 

.67 
.67 
.67 
.67 
.67 

.67 
.67 
.67 
.67 
.81 

2.43 
1.34 
1.06 
.96 
1.06 

.81 
.67 
.67 
.67 
.67 


1.06 

.81 

1.64 


4 


1.95 


5 


1.34 


6 


1.17 


7 


1.06 


8 


.96 


9 


.81 


10 

11 

12 


.81 

.81 
.76 


13 


.67 


14 


.67 


15 


.67 


16 


.67 


17 


.67 


18 


.67 


19 . . 


.67 


20 


.67 


21 


.67 


22 


.67 


23 


.67 


24 


.67 


25 . 


.67 


26 


.67 


27 


.67 


28 


.67 


29 


.67 


30 


.67 


31 


.67 







ISLAND OF KAUAI. 61 

Monthly discharge of Akulikuli Spring near Kealia, Kauai, for 1913. 



Month. 


Discharge in million gallons per 
day. 


Run-ofl 
(total in 


. 


Maximum. 


Mtaimum. 


Mean. 


acre-feet). 




3.39 
2.21 
2.36 
1.52 
1.52 
4.22 
1.76 
.81 
1.64 
1.28 
2.43 
1.95 


0.62 
.62 

.58 
.67 
.58 
.58 
.67 
.67 
.62 
.58 
.67 
.67 


0.78 
.83 
.70 
.72 
.78 

1.06 
.77 
.68 
.72 
.70 
.80 
.84 


74 




71 




67 


April 


66 


May 


74 




98 


July 


73 




65 




66 




67 




74 




80 








4.22 


.58 


.78 


875 







KAPAHI DITCH AT KAPAHI, NEAR KEALIA, KAUAI. 

Location. — ^About 4 miles west of Kealia and 500 feet below diversion dam on Kapaa 

River. 
Records available. — April 15, 1909, to December 31, 1913. 
Gage. — Watson water-stage recorder. 
Discharge measureraents. — ^There is a 20-foot sharp-crested weir immediately 

below the gage, but current-meter measurements give a different rating from the 

weir formula, and the meter rating is used. 
Diversion. — Ditch diverts part of flow of Kapaa River. 
Accuracy. — Records good. 
Cooperation. — Station is maintained in cooperation with the Makee Sugar Co. 

Daily discharge, in secondfeet, of Kapahi ditch at Kapahi, near Kealia, Kauai, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


16.9 
27.0 
14.8 
13.0 
12.4 

14.2 
19.2 
27.0 
20.0 
20.0 

24.0 
46.5 
72.0 
32.5 
31.0 

51.0 
24.0 
16.9 
14.8 
14.2 

■ 54.0 
26.0 
17.6 
29.0 
25.0 

17.6 
15.5 
14.2 
13.0 
12.4 
10.6 


10.6 
10.6 
10.6 
10.6 
10.6 

138 
60.0 
17.6 
16.2 
14.8 

16.2 
13.0 
10.6 
10.6 
13.0 

14.2 
11.8 
66.0 
43.5 
26.0 

20.0 
18.4 
48.0 
36.0 
15.5 

13.6 
12.4 
11.8 


11.2 
10.6 
10.0 
9.0 
9.5 

10.0 
18.4 
16.9 
13.0 
10.6 

9.5 
9.5 
10.0 
10.0 
9.5 

11.8 
11.2 
10.6 
10.0 
13.0 

17.6 
25.0 
74.0 
60.0 
7.0 

7.5 
6.5 
7.0 

12.4 
7.5 

13.6 


14.2 
17.6 
15.5 
13.6 
14.2 

13.0 
12.4 
11.8 
22.4 
16.2 

20.0 
14.2 
42.5 
60.0 
59.0 

21.6 
42.5 
45.0 
27.0 
17.6 

16.2 
16.2 
17.6 
13.6 
20.0 

14.2 
12.4 
11.8 
14.2 
14.2 


10.0 

22.4 
14.8 
14.8 
13.0 

45.0 
36.0 
43.5 
30.0 

18.4 

38.5 
18.4 
5.0 
3.5 
3.5 

5.5 
7.0 
7.0 
11.2 
12.4 

12.4 
13.6 
13.0 
16.9 
16.2 

13.6 
13.6 
15.5 
13.6 
24.0 
14.2 


14.8 
23.2 
93.0 
6.0 
10.0 

12.4 
12.4 
18.4 
17.6 
14.2 

17.6 
20.0 
23.2 
23.2 
21.6 

26.0 
18.4 
16.9 
15.5 
14.2 

14.2 
13.6 
13.6 
13.0 
13.0 

19.2 
45.0 
31.0 
25.0 

42.5 


26.0 
71.0 
29.0 
31.0 
27.0 

20.0 
16.9 
14.8 
16.2 
13.6 

13.6 
16.2 
37.5 
28.0 
17.6 

16.9 
14.8 
13.6 
26.0 
20.8 

1.5.5 
13.6 
12.4 
15.5 
21.6 

23.2 
24.0 
16.2 
36.0 
16.9 
15.5 


14.2 
14.2 
12.4 
11.8 
11.2 

11.8 
17.6 
14.2 
18.4 
14.2 

13.0 
16.9 
22.4 
16.9 
15.5 

14.8 
13.6 
13.0 
14.2 
13.6 

32.5 
17.6 
30.0 
17.6 
38.5 

23.2 
43.5 
16.9 
14.8 
23.2 
27.0 


20.0 
18.4 
16.2 
21.6 
33.5 

27.0 
18.4 
15.5 
13.6 
12.4 

12.4 
14.2 
11.8 
12.4 
12.4 

11.8 
11.2 
11.2 
11.2 
11.2 

10.6 
12.4 
11.8 
11.2 
10.6 

10.6 
10.6 
40.0 
12.4 
11.8 


11.8 
11.2 
10.6 
10.0 
10.0 

17.6 
24.0 
31.0 
33.5 
35.0 

19.2 
16.9 
21.6 
18.4 
20.8 

16.2 
14.8 
22.4 
16.2 
13.0 

38.5 
82.0 
31.0 
20.0 
18.4 

16.2 
13.6 
43.5 
23.2 
1.5.5 
14.2 


12.4 
18.4 
22.4 
16.2 
15.5 

14.2 
24.0 
20.8 
17.6 
16.2 

24.0 
20.8 
20.8 
21.6 
18.4 

14.8 
18.4 
18.4 
19.2 
11.8 

14.2 
14.8 
14.2 
13.6 
12.4 

13.0 
32.5 
53.0 
16.2 
15. 5 


36.0 


2 


24.0 


3 


10.6 


4 


9.5 


5 


7.5 


6 


7.5 


7 


20.8 


8 


36.0 


9 


27.0 


10 


22.4 


11 


20.0 


12 


18.4 


13 :... 


17.6 


14 


16.9 


15 


16.2 


16 


14.8 


17 . ... 


14.8 


18 


16.2 


19 


14.8 


20 


14.2 


21 


14.8 


22 


14.2 


23 


13.6 


24 


13.6 


25 


13.0 


26 


13.0 


27... 


13.0 


28 


13.0 


29 


13.0 


30 


13.0 


31 


13.0 







62 WATER EESOUECES OF HAWAII, 1913. 

Monthly discharge of Kapahi ditch at Kapahi, near Kealia, Kauai, for 1913. 



Month. 



DisehauTge in second-feet. 



Maximum. 



Minimum. 



Mean. 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



72.0 
138 
74.0 
60.0 
45.0 
93.0 
71.0 
43.5 
40.0 
82.0 
53.0 
36.0 



138 



10.6 
10.6 

6.5 
11.8 

3.5 

6.0 
12.4 
11.2 
10.6 
10.0 
11.8 

7.5 



3.5 



24.1 
25.0 
14.9 
21.7 
17.0 
21.6 
22.0 
18.7 
15.3 
22.3 
18.8 
16.5 



19.8 



1,480 
1,390 

916 
1,290 
1,050 
1,290 
1,350 
1,150 

910 
1,370 
1,120 
1,010 



14,300 



KANEHA DITCH NEAR KEALIA, KAUAI. 

Location. — About 5 miles northwest of Kealia, a short distance below the outlet from 

the Kaneha reservoir. 
Records available. — January 1, 1909, to December 31, 1913. 
Gage.— Staff. 

Discharge measurenients. — Made with a 20-foot sharp-crested weir. 
Accuracy. — Records poor. 
Cooperation. — Station is maintained in cooperation with the Makee Sugar Co. 

Daily discharge, in second-feet, of Kaneha ditch near Kealia, Kauai, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 




1.9 
1.9 

2 2 
16 








4.8 
2.2 

12 

35 

26 

8.3 
8.8 
7.8 

10 

11 

11 
6.4 
6.0 
6.0 
6.0 

6.8 
6.0 
5.6 
5.2 
4.8 

4.4 
2.2 
4.0 
2.2 
1.6 

1.6 
11 
6.4 
5.6 
6.8 


5.6 
5.2 
6.2 
5.6 
6.4 

6.0 

5.6 
4.8 
4.8 
3.2 

2.8 
3.6 
11 
9.5 
7.3 

7.3 
8.8 
8.6 
8.3 
6.8 

6.0 
4.8 
6.0 
6.0 
5.6 

9.5 
10 
8.3 
9.5 
7.3 
5.2 


5.2 
6.8 
7.8 
7.3 
6.8 

6.8 
6.8 
8.3 
11 

7.8 

6.0 
5.6 
4.8 
6.0 
5.6 

6.0 
5.6 
4.8 
6.4 
7.3 

7.3 

6.4 
5.2 
6.0 

7.8 

7.3 

7.8 
10 

9.0 
13 

8.8 


20 
10 
8.8 
13' 

22 

13 
9.0 
7.3 
6.4 
6.0 

5.6 
6.0 
6.4 
6.0 
6.4 

6.8 
3.2 
2.8 
3.2 
3.2 

10 
4.0 
3.6 

4.8 
5.2 

4.0 
3.2 

4.4 
4.0 
3.6 


3.6 
3.2 
3.2 

6.4 
4.4 
3.6 

12 

22 

21 

12 
7.3 
5.2 
6.4 

7.8 
7.3 
9.0 
10 

7.8 

13 
14 


6.0 
5.6 
12 

8.3 

6.4 

4.8 
4.4 
5.2 
4.0 
3.6 

5.2 
3.2 
1.6 
7.8 
6.0 

6.4 
6.4 
6.0 
8.3 
6.4 

6.0 
5.6 
6.0 
7.3 
5.2 

3.2 
1.9 
1.6 

20 

15 


5 6 


2 










5 6 


3 











6.8 


4 










10 


5 


3.6 

4.0 








7.3 


6 










8.3 


7 










7.8 


8 












8.8 


9 












7.3 


10 












ft 4 


11 












6.0 


12 


11 

6.8 
12 
6.8 

5.2 










6.0 


13 










6.0 


14 










6.4 


15 










6.0 


16 










4.8 


17 








13 
11 

7.8 
5.2 

4.4 
3.6 
3.2 
3.2 

2.8 

2.5 
2.5 
2.5 
3.2 
4.0 
5.2 


4.4 


18 


4.4 
4.4 
4.4 

8.3 








4.4 


19 








4.4 


20 








3.6 


21 








3.2 


22 








3.2 


23 




5.2 
4.0 
3.6 

3.6 
3.6 






3.2 


24 








4.4 


25 


4.4 
4.4 






4.8 


26 






^'>. 


27 






4.8 


28 








3.6 


29 










2.5 


30 










2.5 


31 










2.5 





















Note.— No record Jan. 1-4,7-11, 17,22-24,27-31; Feb. 5-22; Feb. 28-May 16; Oct. 4-10, 28-31. 
interpolated May 18-20 and July 18. 



Discharge 



ISLAND OF KAUAI. 



63 



Monthly discharge of Kaneha ditch near Kealia, Kauai, for 191S. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean. 



Eun-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 5-6, 12-16, 18-21, 25-26 

February 1-4, 23-27 

May 17-31 

June 

July 

August 

September 

October 1-3, 11-27 

November 

December 



3.6 
1.9 
2.5 
1.6 
2.8 
4.8 
2.8 
3.2 
1.6 
2.5 



6.13 

4.67 
4.94 
7.85 
6.60 
7.14 
7.06 
8.96 
6.31 
5.35 



The period . 



158 
83 
147 
467 
406 
439 
420 
355 
375 
329 



3,180 



ANAHOLA RIVER ABOVE DAM AT KIOKALA, NEAR KEALIA, KAUAI, 

Location. — About one-fourth mile above dam at Kiokala and 6 miles northwest of 

Kealia. 
Records available.^ — August 22 to November 2, 1910; December 28, 1912, to Decem- 
ber 31, 1913. December 15, 1910, to December 28, 1912, at dam at Kiokala. 
Drainage area. — 5.3 square miles. 

Gage. — Friez water-stage recorder August 22 to November 2, 1910, and December 28, 
1912, to December 31, 1913. From December 15, 1910, to December 28, 1912, an 
inclined staff gage. 
Control. — Permanent. 

Discharge measurements. — Made by wading and from foot bridge. 
Accuracy. — Records good for January and from May to August; for other months fair. 
Cooperation. — Station maintained in cooperation with the Makee Sugar Co. 
The following discharge measurement was made by W. V. Hardy: 
May 19, 1913: Gage height, 1.24 feet; discharge, 24.5 second-feet. 

Daily discharge, in second-feet, of Anahola River above dam at Kiokala, near Kealia, Kauai, 

for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


19 
56 
19 
15 
20 

16 
15 
21 
15 
13 

21 
36 
61 
30 

28 

30 
19 

17 
15 
16 

28 
36 
16 
15 
19 

15 
15 
13 
12 
12 
11 


10 
9.5 
9.2 
9.3 

10 

142 
53 
21 
16 
17 

17 
13 
12 
11 
12 

15 
11 
63 

52 
33 

23 
22 
34 
25 
20 

17 
15 
15 


13 
13 
12 
11 
11 

11 
12 
25 
17 
11 

11 
10 
10 
10 
10 

13 
10 
10 
10 
11 

17 
20 
127 
135 
136 

67 
39 
33 
27 
21 
19 


20 
16 
16 
16 
13 

12 
12 
11 
15 
13 

13 
14 
46 
61 

48 

22 
36 
34 
27 
16 

15 
IS 
18 
13 
14 

11 
9.9 

10 
9.6 
9.6 


9.6 

17 

11 
9.6 
9.6 

34 
26 
35 
22 
15 

67 
74 
35 
45 
29 

41 
41 
40 
26 
22 

20 
18 
17 
18 
18 

17 
16 
15 
15 
15 
14 


13 

17 
97 
62 
30 

23 
21 
20 

24 
26 

29 
20 
23 
18 
17 

20 
18 
17 
15 
14 

13 
13 
13 
13 
13 

13 
28 
19 
15 
18 


17 
33 
18 
21 
22 

13 
12 
12 
12 
11 

10 
11 
26 
20 
13 

12 
11 
11 
14 
16 

12 
11 
11 
14 
30 

18 
31 
15 
18 
15 
13 


12 
12 
11 
11 
10 

10 
11 
12 
17 
12 

10 
13 
13 
13 
15 

24 
15 
14 
12 
11 

16 
12 
11 
13 
22 

13 
17 
17 
19 
15 
21 


17 
20 
51 
17 
17 

44 
22 
15 
13 
13 

12 
12 
12 
13 

18 

13 
12 
12 
14 
13 

13 
13 
12 

12 
11 

11 
11 
23 
11 
10 


12 

13 

10 
9.6 
9.6 

11 
17 
23 

28 
15 

13 
13 
20 
17 
20 

17 
13 
13 
11 
10 

12 
49 
57 
22 
17 

15 
13 

28 
14 
12 
12 


10 
30 
15 
13 
11 

11 

57 
23 
35 
24 

32 
26 
26 
17 
15 

15 
16 
16 
46 
137 

176 
61 
52 

57 
89 

73 
49 
43 
49 
55 


37 


2 


30> 


3 


211 


4 


174 


5 


87 


6 


93 


7 


75 


8 


53 


9 


37 


10 


30 


11 


26 


12 


22 


13 


22 


14 




15 




16 




17 




18 




19 




20 




21 




22.... 

23 




24 




25 




26 




27 




28 




29 




30 




31 











Note.— No record Dec. 14-31. Discharge interpolated Mar. 28-29 and Noiv. 29. 



64 WATER EESOURCES OF HAWAH, 1913. 

Monthly discharge of Anahola River above dam, at Kiohala, near Kealia, Kauai, for 1913. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 1-13. 



Month. 



The period 



Discharge in second-feet. 



Maximum. Minimum. Mean 



61 
142 
136 
61 
74 
97 
33 
24 
51 
57 
176 
211 



11 

9.2 
10 

9.6 

9.6 
13 
10 
10 
10 

9.6 
10 
22 



21.7 
25.2 
28.5 
19.6 
25.5 
22.7 
i6.2 
14.0 
16.2 
17.6 
42.6 
69.0 



Run-off 
(total in 
acre-feet). 



1,330 

1,400 

1,750 

1,170 

1,570 

1,350 

996 

861 

964 

1,080 

2,530 

1,780 



16, 800 



Accu- 
racy. 



ANAHOLA DITCH AT KIOKALA, NEAR KEALIA, KAUAI. 

Location. — About 6 miles northwest of Kealia. 

Records available.— May 10, 1909, to December 31, 1913. 

Gage. — Watson water-stage recorder. 

Discharge measurements. — Made with 10-foot sharp-crested weir. 

Accuracy. — Records good . 

Cooperation. — Station maintained in cooperation with the Makee Sugar Co. 

Daily discharge, in second-feet, of Anahola ditch at Kiohala, near Kealia, Kauai, for 1913. 



Day.' 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 

2 

3 


12.1 
13.6 
13.2 
11.8 
11.8 

12.1 
10.7 
12.8 
11.8 
11.8 

10.4 
13.2 
14.3 
12.8 
12.5 

13.2 
11.4 
10.1 
9.4 
10.1 

11.4 
14.0 
11.8 
10.7 
11.1 

11.1 
10.7 

8.7 
7.8 
7.5 
7.2 


6.6 
6.3 
6.0 
6.0 
7.5 

15.9 
15.1 
12.8 
12.1 
11.4 

12.5 
10.1 

8.7 
11.4 

9.0 

10.4 
8.4 
14.3 
12.5 
13.6 

12.5 
12.5 
13.2 
12.8 
12.1 

11.4 
10.7 
9.7 


9.4 

8.7 
8.1 
7.8 
7.2 

8.1 
8.4 
10.7 
11.1 

7.8 

6.9 
6.3 
6.3 
6.0 
6.0 

8.4 
6.3 
6.0 
5.5 
6.9 

10.7 

11.4 

6.0 

.4 

.1 

'""s.'s' 

13.6 
13.2 


13.2 
12.5 
12.5 
12.1 
11.8 

11.1 
10.4 
10.1 

11.8 
10.7 

11.4 
10.1 
14.0 
14.7 
15.1 

13.2 
13.6 
14.0 
13.2 
12.1 

12.1 
12.5 
12.1 
11.1 
11.1 

10.7 
9.4 
9.7 
9.4 
9.0 


8.7 
11.8 
9.7 
8.7 
8.1 

11.8 
13.2 
14.0 
12.8 
12.1 

12.5 
16.7 
8.1 

"'4.'2' 
10.4 
10.1 

9.7 

9.7 
9.7 
9.4 
9.4 
9.4 

9.4 
9.0 
9.0 
8.7 
9.0 
8.7 


9.4 
9.4 
14.7 
13.6 
12.5 

11.8 
11.4 
11.1 
11.4 
11.8 

11.8 
11.1 
10.7 
10.7 
10.7 

11.1 
10.7 
10.7 
10.4 
9.7 

9.0 
9.0 

8.7 
8.4 
8.7 

8.7 
10.1 
11.1 
10.4 
11.1 


11.1 
12.5 
11.8 
11.8 
12.1 

10.4 
10.1 
9.4 
9.7 

8.4 

7.5 
7.5 
11.8 
12.1 
9.7 

8.1 

7.2 
7.2 
8.7 
10.7 

7.8 
6.9 
6.9 
7.8 
14.0 

12.8 
14.3 
10.7 
12.5 
10.7 
9.4 


7.8 
7.8 
6.9 
6.6 
6.0 

6.5 

5.7 
7.2 
11.1 
7.8 

6.0 

7.8 
9.7 
8.4 
10.4 

12.1 
10.4 
9.4 
6.9 
5.5 

8.7 
6.0 
5.2 
6.3 
12.5 

8.1 
9.0 
10.7 
12.1 
9.4 
11.8 


11.1 
10.1 
17.1 
17.2 
17.4 

17.5 
14.0 
10.7 
9.0 

7.8 

7.2 
6.0 
6.0 
7.5 
11.1 

7.2 
6.0 
5.7 
6.9 
5.7 

6.3 

5.7 
5.5 

4.7 
4.4 

3.9 

4.2 
9.7 
5.7 
4.4 


5.7 
6.6 
4.2 
3.4 
3.4 

4.7 
8.4 
12.1 
12.1 

8.7 

6.3 
6.3 
9.7 

8.7 
10.4 

9.4 
6.3 
5.2 
4.7 
4.2 

6.0 
9.7 
14.7 
13.2 
11.8 

9.4 
7.2 
11.8 
8.1 
6.0 
5.2 


4.4 
7.8 
9.0 
7.5 
6.6 

5.7 
9.7 
10.1 
10.7 
10.1 

10.4 
10.1 
10.1 
9.0 

8.4 

8.1 
8.7 
8.4 
10.1 
13.2 




4 




5 




6 




7 




8 




9 

10 





11 




12 




13 




14 




15 




16 




17 




18 .. . 




19 




20 




21 




22 






23 






24 






25 






26 






27 






28 






29 - 






30 






31 













JvToTK.— No record Mai. .-26-28, May 14-16, and Nov. 21 to Dec. 31. Discharge Sept. 4 and 6 interpolated. 



ISLAND OF KAUAI. ' 65 

Monthly discharge of Anahola ditch at Kiokala, near Kealia, Kauai, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January.. 
February. 

March 

April 



May. 

June... 

July 

August , 

September 

October , 

November 1-20... 

The period. 



14.3 

15.9 
13.6 
15.1 

16.7 
14.7 
14.3 
12.5 
17.5 
14.7 
13.2 



7.2 
6.0 
.1 
9.0 
4.2 
8.4 
6.9 
6.2 
3.9 
3.4 
4.4 



11.7 
10.9 
7.60 
11.8 
10.1 
10.7 
10.1 
8.35 
8.52 
7.86 
8.90 



719 
605 
422 
702 
563 
637 
621 
513 
507 
483 
353 



KALIHIWAI RIVER NEAR KILAUEA, KAUAI. 

Location. — One-half mile below Hoopouli Falls, about 2 miles west of Kilauea, and 
about 5 miles above mouth of river. Reached by saddle horse on trail from 
Princeville ranch. 

Records available. — August 21, 1912, to December 31, 1913. 

Drainage area. — 3.9 square miles. 

Gage. — ^ Vertical staff. 

Control. — Probably permanent. 

Discharge measurements. — ^Made by wading. 

Accuracy. — Records fair except for November and December, 1913, when they were 
poor. 

Cooperation. — Station is maintained in cooperation with the Princeville ranch. 

Discharge measurements of Kalihiwai River near Kilauea, Kauai, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Apr. 18 
Apr. 19 


D. E. Homer 


Feet. 
6.76 
6.62 


Sec: ft. 
76.8 


Apr. 20 
May 23 


D. E. Homer 


Feet. 
6.44 
6.08 


Sec. ft. 
46.8 


do 


W.V.Hardy 


24.1 







Daily discharge, in second-feet, of Kalihiwai River near Kilauea, Kauai, for 1912-13. 



Day. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


Day. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1912. 
1 . ... 




29 
32 
29 
29 
29 

46 
32 
29 
29 
29 

29 
29 
27 
25 
25 


24 
24 
23 
22 
22 

23 
24 
98 
36 
25 

24 
24 
24 
24 
23 


25 
24 
24 
24 
25 

32 
24 
24 
32 
24 

24 
24 
24 
24 
25 


28 

36 

76 

2,500 

224 

76 
46 
46 
41 
41 

38 
36 
36 
46 
41 


1912. 
16 




25 

25 
25 
58 
58 

24 
23 
23 
24 

22 

22 
22 
22 
22 
23 


25 

24 
24 
29 
46 

76 
25 
29 
36 
32 

34 
32 
29 
28 
27 
26 


24 
24 
29 
25 
111 

29 
28 
25 
27 
25 

25 
24 
27 
29 
25 


36 


2 




17 




39 


3 




18 




44 


4 




19 




41 


5 




20 . .. . 




36 


6 




21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 


29 
124 
36 
29 
29 

29 
98 
36 
41 
36 
32 


36 


7 




36 


8 




52 


9 




46 


10 




46 


11 




44 


12 




41 


13 




36 


14 




35 


15 




34 






29 



97764°— wsp 373—15- 



66 WATEE EESOUKCES OP HAWAII, 1913. 

Daily discharge, in second-feet, ofKalihiwai River near Kilauea, Kauai, for 1912-13 — Con. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1913. 
1 


29 
29 
28 
27 
29 

36 
36 
41 
36 

48 

46 
187 
98 
58 
52 

46 
41 
38 
98 
98 

111 
98 
76 
58 
41 

32 

29 
25 
24 
24 
24 


24 
23 
23 
24 
24 

750 
98 
36 
29 
24 

24 
23 
23 
22 
23 

24 

24 
244 
154 

46 

29 
29 
29 
29 
24 

27 
25 
111 


24 
24 
24 
23 
23 

23 
24 
25 
23 
22 

22 
22 
22 
22 
22 

23 
23 

24 
23 
23 

25 

32 

348 

390 

400 

308 
76 
58 
41 
41 
38 


36 
36 
36 
36 
27 

26 
25 
24 
32 
29 

32 
32 
34 
67 
62 

54 
111 
119 

85 
52 

38 
38 
46 
41 
80 

63 
46 
41 
41 
39 


41 

87 
63 
38 
25 

264 
46 
62 
41 
36 

50 
80 
36 
32 
46 

62 
80 
38 
29 
29 

26 
25 
25 
24 
23 

22 
21 
21 
20 
19 
18 


18 
18 
98 
46 
29 

25 
25 
26 
32 
30 

29 
29 
27 
32 
36 

36 
36 
32 
30 
29 

27 
27 
25 
24 
24 

23 

244 
41 
52 
41 


41 
36 
52 
41 
35 

35 
32 
32 
31 
30 

29 
29 

48 
46 
38 

38 
36 
29 
27 
26 

25 
32 
24 
24 
52 

41 
32 
29 
27 
26 
25 


25 
24 
24 
23 
23 

23 
23 
22 
24 
24 

24 
41 
48 
41 
36 

27 
26 
24 
23 
23 

24 
24 
24 
24 
24 

24 
24 
27 
48 
39 
35 


36 
1,050 
46 
38 
32 

30 
30 
29 
32 
30 

29 
27 
26 
25 
25 

24 
32 
32 
24 
32 

24 
24 
23 
23 
23 

23 
22 
22 
22 
22 


22 
21 
21 
21 
21 

21 
37 
32 
31 
29 

27 
25 
25 
25 
24 

24 
24 
24 
23 
36 

32 
29 
72 
58 
36 

29 
24 

28 
27 
27 
26 


25 

25 
25 
24 
25 

26 
31 
32 
37 
39 

50 
400 
500 
187 
154 

111 
76 
62 

700 
1,100 

550 
650 
400 
308 
600 

187 
154 
124 
2,050 
600 


400 


2 


264 


3 


1,450 


4 


224 


5 


154 


6 


187 


7 


180 


8 


174 


9 


50 


10 


46 


11 


41 


12 


39 


13 


36 


14 


34 


15 


31 


16 


29 


17 


29 


18 


29 


19 


28 


20 


28 


21 


28 


22 


27 


23 


24 


24 


24 


25 


24 


26 


24 


27 


23 


28 


23 


29 


22 


30 


22 


31 


22 







Monthly discharge of Kalihiwai River near Kilauea, Kauai, for 1912-13. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Run-off (in 
acre-feet). 



Accu- 
racy. 



1912, 

August 21-31 

September 

October 

November , 

December 

1913. 

January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



124 

58 



111 
2,500 



187 

750 

400 

119 

264 

244 

52 

48 

1,050 

72 

2,050 

1.450 



47.2 
28.9 
31.0 
28.5 
127 



53.0 
70.2 
71.5 
47.6 
46.1 
39.7 
33.8 
27.9 
61.9 
29.1 

308 

120 



1,030 
1,720 
1,910 
1,700 
7,810 



■3,260 
3,900 
4,400 
2,830 
2,830 
2,360 
2,080 
1,720 
3,680 
1,790 
18,300 
7,380 



2,050 



75.4 



54,500 



ISLAND OF KAUAI. 



67 



HANALEI RIVER NEAR HANALEI, KAUAF. 

Location. — ^About 5 miles up the river from Hanalei. 

Records available. — December 28, 1911, to December 31, 1913. 

Drainage area. — 19.2 square miles. 

Gage.— Staff. 

Control. — Probably permanent. 

Discharge measurements. — Cable and car or by wading. 

Accuracy. — Records good for January, February, April, May, August, September, 
and October; for other months fair. 



Discharge measurements of Hanalei River near Hanalei, Kauai, in 1913. 



Date. 


Hydrographer. 


• 

Gage 

height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Mar. 25 


Hardy and Homer 

W.V.Hardy 


Feet. 
7.90 
6.75 


Sec.-ft. 

1,160 

214 


Nov. 12 


W. V. Hardy 


Feet. 
8.50 


Sec.-ft. 
1,620 


28 











Daily discharge, in second-feet, of Hanalei River near Hanalei, Kauai, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


124 
158 
158 
124 
124 

124 
124 
124 
124 

158 

124 
158 
302 
158 
158 

124 
124 
124 
124 
158 

124 
124 
124 
124 
124 

124 
124 
124 
124 
124 
124 


124 
124 
124 
124 
158 

200 
124 
124 
124 
124 

124 
124 
93 
93 
93 

93 
124 
291 
158 
124 

124 
124 
93 
124 
124 

93 
93 
93 


93 
93 
93 
93 
93 

93 
124 
124 
93 
93 

93 
93 
93 
93 
93 

93 
93 
93 
124 
124 

124 
124 
124 
910 
910 

655 
124 
224 
93 
124 
124 


93 
93 
124 
124 
93 

93 
93 
124 
124 
124 

124 
93 
158 
124 
124 

93 
93 
93 
93 
93 

93 
93 
93 
93 
124 

93 
124 
124 
124 

158 




93 

158 
93 
93 

124 

124 
200 
124 
124 
124 

124 
200 
124 
124 
124 

124 
124 
124 
124 
124 

124 
124 
124 
124 
96 

93 
93 
93 
124 
124 
93 


93 
93 
825 
124 
124 

124 
124 
124 
158 
124 

124 
124 
158 
124 
124 

364 
124 
124 
93 
93 

124 
124 
124 
124 
124 

124 
364 
124 
124 
124 


124 
1,180 
364 
364 
364 

124 
124 
124 
124 
124 

124 
124 
248 
200 
158 

124 
124 
158 
124 
93 

93 
93 
124 
124 
124 

93 
158 
124 
93 
93 
93 


93 
93 
93 
93 
93 

124 
124 
124 
124 
93 

93 
124 
158 
158 
124 

248 
158 
124 
93 
93 

124 
124 
93 
124 
124 

115 
124 
364 
158 

248 
200 


158 
248 
158 
124 
124 

124 
158 
124 
124 
93 

93 
124 
124 
124 

93 

93 
93 
93 
124 
93 

93 
93 
93 
93 
68 

68 
68 
158 
124 
124 


124 
93 
93 
93 
93 

93 
248 
200 
124 

93 

93 
93 
124 
124 
124 

93 
93 
124 
93 
93 

93 
93 
93 
93 
124 

124 
124 
124 
93 
93 
124 


93 
248 
158 
124 

93 

93 
200 
158 
158 
500 

364 
955 
200 
158 
124 

124 
124 
158 
248 
910 

200 
158 
158 
158 
200 

200 
124 
93 
93 
158 


124 


2 


124 


3 


825 


4 


124 


5 


124 


6 


124 


7 


124 


8 


124 


9 


93 


10 


93 


11 


93 


12 


93 


13 


93 


14 


93 


15 


93 


16 


93 


17 


93 


18 


93 


19 


93 


20 


93 


21 


93 


22 


93 


23 


93 


24 


93 


25 


93 


26 


93 


27 


93 


28 


93 


29 


93 


30 


93 


31 


124 







68 



WATER EESOUECES OF HAWAII^ 1913. 



Monthly discharge of Hanalei River near Hanalei, Kauai, for 1913. 



Month. 



Discharge ia second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



302 
291 
910 
158 
200 
825 
1,180 
364 
248 
248 
955 
825 



124 
93 
93 
93 
93 
93 
93 
93 



137 

126 
178 
110 
122 
162 
184 
136 
116 
112 
224 
125 



8,420 
7,000 

10, 900 
6,550 
7,500 
9,640 

11, 300 
8,360 
6,900 
6,890 

13, 300 
7,690 



104,000 



KUNA DITCH NEAR HANALEI, KAUAI. 

Location. — ^About 4 miles up the river from Hanalei and 500 feet below diversion 

from Hanalei River. 
Records available. — January 17, 1912, to September 30, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 

Discharge measurements. — Made from footbridge. 
Accuracy. — Records fair. 

Discharge measurements of Kuna ditch near Hanalei, Kauai, in 1913. 



Date. 



Hydrographer. 



Gage 
height. 



Dis- 



Mar. 26 
Aug. 26 



W. V. Hardy. 
do 



Feet. 
4.S 
4.e 



Sec.-ft. 
23.8 
19.4 



Daily discharge, in second-feet, of Kuna ditch near Hanalei, Kauai, for 1913. 



Day. 



Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


5.0 


4.5 


22 


22 


22 


27 


34 


22 


5.7 


4.5 


22 


22 


24 


26 


48 


22 


5.7 


4.5 


22 


24 


22 


29 


38 


22 


5.7 


4.5 


22 


24 


22 


28 


38 


22 


5.0 


5.7 


22 


22 


22 


28 


38 


23 


5.0 


7.4 


22 


22 


22 


28 


35 


23 


5.0 


4.5 


24 


22 


24 


27 


35 


23 


4.5 


4.5 


24 


24 


22 


27 


35 


23 


4.5 


4.5 


22 


24 


22 


28 


35 


23 


5.0 


4.5 


22 


24 


22 


28 


34 


22 


4.5 


4.5 


22 


24 


22 


28 


34 


22 


5.0 


4.5 


22 


22 


24 


27 


34 


23 


6.5 


22 


22 


26 


22 


28 


35 


24 


5.0 


22 


22 


24 


22 


28 


34 


24 


5.0 


22 


22 


24 


22 


28 


32 


23 


5.0 


22 


22 


22 


22 


31 


32 


27 


5.0 


24 


22 


22 


22 


28 


34 


23 


5.0 


24 


22 


22 


22 


28 


36 


24 


5.0 


24 


24 


22 


22 


28 


35 


23 


5.7 


24 


24 


22 


22 


28 


31 


22 


5.0 


24 


24 


22 


22 


28 


31 


23 


5.0 


24 


24 


22 


22 


30 


31 


23 


5.0 


22 


24 


•22 


22 


30 


32 


22 


5.0 


24 


42 


22 


22 


30 


32 


23 


5.0 


24 


30 


22 


21 


30 


34 


24 


5.0 


22 


26 


22 


21 


30 


32 


21 


5.0 


22 


24 


22 


28 


38 


32 


24 


5.0 


22 


22 


22 


29 


32 


26 


29 


5.0 




22 


22 


28 


32 


22 


25 


4.5 




24 


24 


28 


32 


22 


27 


4.5 




24 




28 




22 


26 



Sept. 



1 

2 
3 
4 
5 

6 
7 
8, 
9 
10 

11, 
12 
13, 
14 
15, 

16. 
17, 
18, 
19, 
20 

21, 
22, 
23, 
24 
25 

26, 
27 
28 
29, 
30 
31 



25 
29 
25 
24 
24 

24 
25 
24 
24 
23 

24 
24 
24 
13 
13 

13 
13 
13 
13 
13 

13 
13 
13 
11 
11 

11 
13 
14 
13 

13 



ISLAHD OF KAUAI. 
Monthly discharge of Kuna ditch near Hanalei, Kauai, for 1913. 



69 



Month. 


Discharge in second-feet. 


Rim-oflf 
(total in 
acre-feet). 


Accu- 


Maximum. 


Minimum. 


Mean. 


racy. 


January . 


6.5 
24 
42 
26 
29 
38 
48 
29 
29 


4.5 
4.5 

22 

22 

21 

26 

22 

22 

11 


5.06 
15.2 
23.7 
22.7 
23.1 
29.0 
33.0 
23.5 
18.2 


311 

844 
1,460 
1,350 
1,420 
1,730 
2,030 
1,440 
1,080 


C. 




C. 




B. 


April . 


B. 




B. 




B. 


July 


B. 




B. 


September . 


B. 














11,600 















WAINEEA EIVER (eAST AND WEST CHANNELS) AT POWER HOUSE, NEAR 

WAINIHA, KAUAI. 

Location. — About 2 miles south of Wainiha and just northeast of Kauai Electric Co.'s 

power house. 
Becords available. — East Channel, February 25, 1912, to December 31, 1913; West 

Channel, December 30, 1911, to December 31, 1913. 
Drainage area. — 14.7 square miles. 
Gage. — ^Two inclined timber gages — one on each channel — to obtain the total flow of 

the river at this point. 
Control. — Two large channels, both rocky and probably permanent. The natives 

build fish dams at the point where the river divides above the stations, and this 

shifts the water from one channel to the other. 
Discharge raeasurements. — Made from wire suspension footbridge over each 

channel, or by wading. 
Accuracy. — East Channel, records fair; West Channel, records good. 
Cooperation. — Stations maintained in cooperation with the Kauai Electric Co. 

Discharge measurements of east channel of Wainiha River near Wainiha, Kauai, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Mar. 31 


W.V.Hardy 

D.E. Homer 

W. V. Hardy.. 


Feet. 
6.73 
6.72 
6.59 


Sec.-ft. 
10.3 
12.7 
5.9 


Nov. 13 
Nov. 14 


W. V. Hardy 


Feet. 
9.30 
8.10 


Sec.-ft. 
407 


Apr. 24 
Au?. 23 


do 


106 









70 



WATER RESOURCES Of HAWAII, 1913. 



Daily discharge, in second-feet, of east channel of Wainiha River near Wainiha, Kauai, f of 

1912-13. 



Day. 



Jan. 



Feb. 



Mar. 



Apr. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



1912. 



1913. 



16 
34 

28 
20 
50 
37 
37 

112 
12 
10 



74 
94 
57 
66 

70 
50 
70 
134 
256 

642 
1S5 
106 
74 
46 

34 

20 

14 

4 



23 
10 
6 

28 
349 

37 
23 
34 
18 
16 
16 



175 
50 
37 
34 
10 
10 



28 
18 
12 
31 
31 

94 
256 
366 
242 

74 

57 
66 
43 
34 
37 

20 
43 
23 



50 
40 
23 
14 
10 

10 
10 
10 

18 
18 

70 
53 
84 
79 
206 

46 
100 
46 



10 
16 
18 
26 

23 
28 
34 
14 
10 

10 
10 
14 
119 

74 

28 
26 
20 
14 
14 

16 
31 
18 
23 
16 

14 
23 
256 
89 
28 
18 



7 
157 
37 
43 
70 

89 
43 
34 
12 



12 
10 
10 
10 
16 

20 
37 
12 
27 
115 

126 
46 

217 
57 
40 

17 
106 
15 
12 
12 

16 
12 
12 
16 
10 

20 
12 
7 
8 
12 
10 



18 
157 
57 
66 
61 

23 
26 
18 
U 
10 



14 
12 
20 
230 
34 



7 
7 
7 

18 
26 
16 
14 
9 

10 
79 
66 
66 
119 
94 



46 
40 
34 
18 
12 

242 
43 

18 
18 
10 



35 
26 
45 
46 

106 
40 
28 
14 
16 

217 
34 
34 
18 
23 
31 



7 
7 
7 
6 
6 

10 
31 
242 
23 
10 

10 
10 
61 
18 
10 

18 
7 
7 
7 
7 



7 
10 
79 
141 
18 

12 

7 
7 
7 
16 

12 
10 
12 
26 
16 

141 

149 

100 

20 

12 



10 
119 
141 



18 
29 
40 
40 
16 

12 
94 
28 
141 
61 



485 
106 
126 

126 

149 

66 

2,250 

332 

100 
270 
185 
217 
485 

230 
63 
70 

620 
79 



ISLAND 01? KAXTAl. 71 

Monthly discharge of east channel of Wainiha River near Wainiha, Kauai, for 1912-13. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Rim-off 
(total in 
acre-feet). 



Accu- 
racy. 



February 25-29. 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 



The period. 



January 

February.. 

March 

April 

May , 

June 

July 

August 

September . 

October 

November. 
December.. 



1913. 



The year. 



16 
642 
366 
256 

23 
217 
230 
242 
217 
149 
1,320 



112 
34 

175 

206 

157 
94 

157 
66 
84 

242 
2,250 

464 



11.8 
86.4 
52.4 
33.8 
15.5 
34.6 
33.1 
20.9 
30.9 
37.9 
104 



21.1 
11.1 
25.4 
42.5 
27.7 
20.7 
26.5 
17.0 
12.0 
18.8 
272 
70.2 



46.9 



117 
5,310 
3,120 
2,080 

922 
2,130 
2,040 
1,240 
1,900 
2,260 
6,400 



27,500 



1,300 
616 
1,560 
2,530 
1,700 
1,230 
1,630 
1,050 
714 
1,160 
16,200 
4,320 



34,000 



Discharge measurements of west channel of Wainiha River near Wainiha, Kauai, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Aug. 23 


W.V.Hardy 

do 


Feet. 
5.50 
6.19 


Sec.-ft. 
112 
386 


Nov. 13 


W. V. Hardy 


Feet. 
6.87 


Sec.-ft. 
242 


Nov 13 







n 



WATER EESOURCES OF HAWAII, 1&13. 



Daily discharge, in second-feet, of west channel of Wainiha River near Wainiha, Kauai, 

for 1912-13. 



Day. 



Jan. 



Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


102 


390 


272 


140 


140 


128 


115 


340 


135 


158 


192 


272 


210 


140 


128 


115 


115 


318 


128 


128 


210 


365 


158 


147 


115 


115 


115 


272 


295 


140 


192 


250 


250 


158 


140 


115 


90 


210 


115 


128 


140 


250 


295 


192 


128 


140 


175 


158 


158 


115 


115 


365 


440 


140 


115 


175 


192 


580 


147 


115 


115 


250 


580 


140 


115 


210 


210 


272 


128 


128 


128 


295 


670 


175 


115 


158 


272 


210 


140 


272 


140 


465 


640 


140 


140 


175 


250 


175 


168 


440 


140 


700 


365 


115 


115 


365 


140 


128 


175 


230 


158 


790 


250 


115 


115 


318 


158 


115 


115 


158 


128 


440 


295 


115 


115 


175 


128 


115 


128 


115 


128 


295 


760 


230 


140 


365 


175 


102 


128 


115 


128 


250 


250 


415 


115 


272 


520 


90 


128 


115 


128 


192 


272 


295 


128 


230 


295 


115 


115 


230 


115 


192 


230 


158 


128 


175 


175 


115 


140 


175 


115 


192 


390 


158 


115 


318 


128 


140 


230 


140 


158 


158 


272 


128 


175 


158 


115 


115 


175 


192 


140 


128 


158 


140 


192 


140 


115 


115 


340 


272 


158 


272 


158 


140 


175 


128 


115 


115 


365 


192 


272 


295 


128 


158 


158 


140 


175 


115 


465 


415 


340 


192 


128 


192 


128 


140 


210 


175 


272 


415 


390 


158 


128 


158 


158 


140 


175 


120 


210 


250 


340 


250 


140 


192 


175 


158 


158 


102 


158 


670 


250 


580 


158 


158 


128 


140 


175 


102 


175 


158 


230 


272 


192 


140 


115 


192 


140 


90 


490 


140 


272 


210 


250 


210 


135 


140 


440 


90 


230 


115 


192 


250 


175 


440 


115 


115 


250 


140 


272 


115 


210 


210 


192 


295 


115 


128 


192 


140 


175 


318 




210 


158 


140 


115 


128 


490 


115 


175 


390 




230 




140 




115 


295 




230 




115 


115 


272 


128 


115 


158 


115 


365 


115 


160 


115 


115 


230 


318 


115 


415 


115 


230 


115 


205 


115 


115 


210 


210 


230 


295 


115 


175 


115 


250 


115 


115 


175 


115 


140 


318 


115 


140 


102 


250 


140 


115 


140 


192 


140 


295 


102 


140 


102 


158 


128 


115 


120 


365 


182 


210 


102 


175 


140 


128 


175 


140 


115 


230 


175 


210 


128 


140 


230 


295 


140 


128. 


115 


210 


115 


175 


175 


115 


580 


230 


115 


115 


192 


140 


175 


140 


192 


128 


250 


415 


115 


115 


175 


115 


318 


128 


115 


115 


140 


318 


115 


115 


295 


102 


272 


115 


115 


115 


140 


730 


115 


115 


272 


272 


175 


128 


175 


140 


140 


730 


102 


115 


520 


230 


192 


295 


192 


115 


295 


670 


102 


115 


490 


140 


210 


340 


272 


115 


175 


230 


115 


115 


490 


115 


175 


192 


192 


115 


140 


250 


115 


115 


340 


128 


210 


158 


295 


115 


175 


250 


140 


230 


465 


175 


115 


140 


175 


115 


115 


272 


295 


135 


230 


230 


115 


128 


140 


115 


115 


230 


295 


158 


192 


158 


140 


140 


120 


140 


115 


580 


230 


175 


158 


115 


115 


140 


128 


115 


115 


440 


192 


158 


158 


128 


128 


128 


140 


115 


128 


210 


140 


175 


135 


115 


115 


115 


128 


128 


115 


415 


140 


680 


102 


128 


115 


115 


115 


115 


115 


440 


272 


640 


128 


140 


115 


140 


128 


115 


128 


440 


192 


730 


365 


128 


175 


192 


192 


115 


115 


550 


135 


390 


140 


128 


250 


192 


140 


110 


115 


365 


128 


272 


175 


128 


250 


158 


140 


102 


115 


210 


115 


230 


210 


115 


210 


140 


158 


175 


110 


175 




210 


192 


115 


140 


210 


318 


115 


115 


490 




175 


250 


175 


158 


115 


272 


115 


115 


175 




175 




115 




115 


210 




115 





90 
115 
140 
115 
140 

115 
115 
175 
140 

128 

90 
115 
175 
140 
115 



90 



90 
90 
1C2 
175 
128 

102 
140 
115 
115 

128 
140 



140 
295 
210 

175 
140 

140 
128 
415 
192 
340 

295 
295 
465 
272 
340 

210 
158 
140 
135 
140 

140 
140 
128 
115 
115 

115 
128 
115 
115 
115 
158 



ISLAi^D Of KAUAI. 



^73 



Monthly discharge of west channel of Wainiha River at power house, near Wainiha, Kauai, 

for 1912-13. 



Month. 



Discharge in second-feet. 



Maximum. 



Minimum. 



Mean. 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



1912 

January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 

1913 

January 

February 

March .> 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



175 
390 
790 
760 
440 
192 
365 
520 
580 
490 
670 
1,310 



1,310 



465 
295 
730 
520 
365 
318 
365 
415 
365 
580 
730 
520 



90 
102 
128 
128 
115 
115 
115 
90 
90 
115 
115 
115 



115 
102 
115 
102 
102 
115 
115 
102 
102 
102 
128 
90 



119 
184 
302 
285 
181 
133 
178 
203 
166 
203 
218 
269 



194 
150 
204 
235 
165 
169 
185 
162 
138 
152 
342 
151 



7,320 
10,600 
18, 600 
17,000 
11,100 

7,910 
10,900 
12, 500 

9,880 
12, 500 
13,000 
16, 500 



11,900 
8,300 
12,500 
14,000 
10, 100 
10, 100 
11,400 
9,960 
8,210 
9,350 
20,400 
9,280 



730 



187 



136,000 



MISCELLANEOUS MEASUREMENTS. 



Measurements of streams on the island of Kauai at points other 
than regular gaging stations are listed below: 

Miscellaneous discharge measurements on Kauai during the year ending Dec. 31, 1913. 



Date. 


Stream. 


Tributary to— 


Locality. 


Gage 
height. 


Dis- 
charge. 


Feb. 9 


Mohihi 


Waimea River . . . 


Elevation about 3,500 feet 
do 


Feet. 
3.81 
3.77 
3.92 
2.52 
2.50 
2.84 
2.57 
.60 
.37 
.38 
1.21 
1.09 
7.70 
3.20 
3.35 
3.64 


Sec.ft. 
3.04 


Mar. 5 


....do 


do 


2.47 


July 6 
Feb. 9 


do 


-do 


.do 


4.70 


Waiakoali . . . 


.do 


..do 


3.03 


Mar. 5 


do 


do 


do 


2.74 


July 8 
July 9 
Apr. 30 
July 28 
Oct. 14 


.do. 


.do. . 


.do 


10.1 


do 


. ...do 


do 


3.53 






Near Waimea 


1.60 


..do 




...do 


.62 








29.0 


June 21 


Hanapepe ditch b 




...do 


15.5 


Do... 


do 




do 


15.2 


May 26 
Mar. 28 






Near Kilauea 


4.69 


China ditch c 




Near Hanalei 


25.1 


Apr. 26 
May 25 
Aug. 26 
Mar. 22 


do 




do 


26.5 


.do 




.do 


30.5 


do 




do 


19.8 






Near Wainiha. ... 




103 


Mar. 30 


. .do. 




. .do 




131 


Sept. 17 
Oct. 21 


do 




do 




63.2 


.do. 




.do 




55.2 















o Diverts from Waimea River. 6 Diverts from Hanapepe River. 



■ Diverts from Hanalei River. 



74 WATER RESOUSCES OE HAWAII^ 1913. 

ISLAND OF OAHTJ. 
KALIHI STREAM AT KIOI POOL, NEAR HONOLULU, OAHU. 

Location. — At Kioi Poolf about three-eightlis mile above Catholic Orphanage, 3 miles 
up Kalabi Road from King Street car line, and 5 miles north of Honolulu post office. 

Records available. — September 8 to December 31, 1913. 

Gage. — Gurley weight-driven register installed December 4 . September 8 to Novem- 
ber 22, 1913, Friez register. No record November 23 to December 3. 

Control. — On November 20 a flood lowered the control 0.35 foot; after December 8, 
probably permanent. 

Discharge measurements. — Made by wading or from suspension footbridge about 
500 feet above station. 

Discharge measurements of KaliM Stream at Kioi Pool, near Honolulu, Oahu, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Sept. 8 
Sept. 27 
Oct. 4 


G. R.White 


Feet. 
2.64 
2.58 
2.58 
2.54 
2.53 
3.41 


Sec.-ft. 
2.37 
1.71 
1.29 
1.06 
.98 
18.8 


Nov. 8 
Nov. 12 
Nov. 22 
Dec. 4 
Dec. 11 
Dec. 23 


G. R.White 


. Feet. 
3.22 
3.76 
2.88 
5.08 
2.95 
2.50 


Sec.-ft. 
13.0 


do 

do 


do 

do 


29.0 
11.8 


Oct. 12 


do 

do 


G K. Larrison 


96.0 


Oct. 25 


J. C. Dort 

do 


11.0 


Nov. S 


do 


5.26 



Daily discharge, in second-feet, of Kalihi Stream at Kioi Pool, near Honolulu, Oahu, for 

191S. 



Day. 


Sept. 


Oct. 


Nov. 


Dec. 


Day. 


Sept. 


Oct. 


Nov. 


Dec. 


1 




1.6 
1.6 
1.6 
1.6 
1.7 

1.9 
2.4 
3.8 
1.8 
1.7 

1.5 
1.3 
1.6 
2.1 
1.8 


0.8 
3.1 
1.4 
1.0 
1.0 

1.0 
8.6 

18 

12 

8.4 

16 

18 

12 
6.8 
5.2 




16 


2.2 
1.9 
2.6 
2.8 
2.2 

2.2 
4.4 
2.1 
3.1 
2.2 

1.9 
1.6 
1.6 
1.6 
1.6 


1.7 
1.4 
1.3 
1.2 
1.1 

1.1 

1.1 
1.1 
1.1 
1.0 

1.0 
1.0 
1.0 
.9 
.9 
.8 


4.4 
4.4 
5.0 

13 

28 

18 
9.8 


6.9 


2 






17 


7.3 


3 






18 


6.6 


4 




78 
46 

76 
64 
28 
20 
16 

13 
10 

9.6 
10 

9.6 


19 


6.5 


5 




20 


6.3 


6 


2.9 
2.6 
2.5 
2.4 
2.5 

2.2 
1.9 
2.2 
3.1 
2.4 


21 


6.0 


7 


22 


5.7 


8 


23 


28 


9 


24 


5.1 


10 


25 


5.0 


11 


26 


4.9 


12 


27 


4.6 


13 


28 


4.5 


14 


29 


4.4 


15 


30 


4.2 




31 


4.2 











Note. — Discharge estimated for days on which no gage heights were recorded, with the exception of 
period Nov. 23 to Dec. 3. 1913. Staff gage-height evidence indicated a maximum discharge of about 300 
second-feet on night of Dec. 3. 



ISLAND Of OASU. 



75 



NUUANU STREAM AT LUAKAHA WEIR IN UPPER NUUANU VALLEY, NEAR 

HONOLULU, OAHU. 

Location. — About 1 mile above reservoir No. 4 (main) in upper Nuuanu Valley, and 
about 5 miles from Honolulu post office. 

Records available. , 1903, to December 31, 1913. 

Gage. — ^Head is measured on iron pipe set about 3.0 feet back from weir crest; read 
once daily. 

Control. — Permanent. 

Discharge measurements. — ^Made by 4-foot sharp-crested weir with end contrac- 
tions; check measurements made with current meter by wading. At times floods 
exceed the capacity of the diversion channel and are not measured. Waste water 
from this station is measured by station on the Nuuanu Stream below reservoir 
No. 4. 

Diversions. — ^Aqueduct diverts seepage from reservoir No. 4, including inflow from 
Nuuanu Valley drainage below reservoir No. 4. 

Cooperation. — Records furnished by waterworks department of city of Honolulu. 

Monthly discharge of Nuuanu Stream at Lvxihaha weir, in Nuuanu Valley, near Honolulu, 

Oahu, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum 



Run-off 
(total in 
acre-feet). 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



11.8 
4.71 
9.18 
9.53 
15.0 
15.2 
5.14 
4.85 
4.16 
2.19 
19.8 
20.2 



20.2 



2.76 
2.41 
1.47 
2.41 
2.41 
3.63 
2.88 
2.64 
1.47 
.70 
.56 
6.04 



.56 



4.62 
2.60 
3.07 
3.69 
4.96 
4.77 
3.79 
2.94 
2.24 
1.25 
5.60 
9.56 



4.10 



284 
144 
189 
220 
305 
284 
233 
181 
133 
77 
333 
588 



NUUANU STREAM BELOW RESERVOIR NO. 

LULU, OAHU. 



2 WASTEWAT, NEAR HONO- 



Location. — On Pali road in upper Nuuanu Valley, about 5 miles from Honolulu post 
office and 1 mile above end of car line. 

Records available. — October 21 to December 31, 1913. 

Gage. — Inclined staff read to hundredths. 

Control.— Permanent. 

Discharge measurements. — Low-water discharge measured by 2.0-foot sharp- 
crested weir with end contractions. Flood discharge measured by 12.0-foot 
sharp-crested weir with end contractions, which, with small weir, gives total flood 
discharge. Both weirs set in concrete structure. Small weir crest is 1.0-foot 
below large weir crest in elevation. 

Diversions. — Irrigation ditch diverts low-water discharge at point 300 feet below 
gage. Station measures waste water and seepage from reservoirs Nos. 2, 3, and 4 
and the Luakaha weir. 



76 



WATEK EESOUECES OF HAWAII, 1913. 



Daily discharge, in second-feet, of Nuuanu Stream below reservoir No. £ wasteway, near 

Honolulu, Oahu, for 1913. 



Day. 


Oct. 


Nov. 


Dec. 


Day. 


Oct. 


Nov. 


Dec. 


1 




0.21 
.21 
.21 
.21 
.21 

.24 
.27 
1.08 
1.95 
1.77 

5.05 
5.41 
6.34 
4.38 
3.12 


14.9 
45.6 
56.4 
44.2 
30.4 

48.3 
36.5 
22.3 
18.9 
13.2 

12.1 
10.6 
9.64 
14.5 
12.5 


16 




3.34 
1.89 
1.83 
2.90 
27.1 

24.4 
17.1 
10.3 
12.1 
29.3 

12.1 
49.4 
24.4 
17.1 
14.1 


11.4 


2 




17 




10.6 


3 




18 




10.6 


4 




19 




10.6 


5 




20 




10.6 


6 




21 


0.30 
.30 
.30 
.30 
.27 

.27 
.24 
.21 
.21 
.21 
.21 


9.97 


7 




22 


9.01 


8 




23 


V.85 


9 




24 


•7.59 


10 




25 


7.35 


11 




26 


6.70 


12 




27 

28 


6.51 


13 




6.51 


14 




29 


6.13 


15 




30 


6.13 






31 


6.13 









Note.— Mean for November, 9.27 second-feet; minimum for November, 0.21 second-feet. Mean for 
December, 16.9 second-feet; minimum for December, 6.13 second-feet. 

LULUMAHA^ DITCH AT UPPER NUUANU RESERVOIR, NEAR HONOLULU, 

OAHU. 

Location. — ^About 500 feet east of spillway of upper Nuuanu Valley reservoir, about 

7 miles northeast of Honolulu post office. 
Records available. — September 2, 1911, to September 30, 1913. 
Gage. — ^Vertical staff. 
Control. — Shifting. 

Discharge measurements. — ^Made by wading. 
Diversions. — Low-water discharge is diverted from Lulumaha Stream into reservoir 

No. 4. 
Accuracy. — Records poor. 

Discharge measurements of Lulumaha ditch at upper Nuuanu reservoir, near Honolulu, 

Oahu, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Apr. 2 
14 


G. K. Larrison 


Feet. 
0.31 
.34 


Sec.-ft. 
58 


J. C. Dort 


77 









1 Incorrectly spelled "Lulumaho" in Water-Supply Paper 336. 



ISLAND OF OAHU. 



77 



Daily discharge, in second-feet, of Lulumaha ditch at upper Nuuanu reservoir, near Hono- 
lulu, Oahu,for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1 


0.6 
.5 
.5 
.5 
.3 

.3 
.3 
.9 
1.2 
2.9 

8.0 
1.7 
1.6 
1.0 
1.2 

1.9 
1.4 
1.2 
1.0 

.8 

.8 
.6 
.6 
.6 
.5 

.5 
.5 
.5 
.5 
.5 
.5 


0.5 
.5 
.5 
.5 
.3 

2.5 
1.4 
1.4 
.9 
.6 

.5 
.5 
.5 
.5 
1.4 

.9 
6.2 
1.4 
.9 
.5 

.5 

.5 

.5 

2.5 

.5 

.5 
.5 
.5 


0.5 
.5 
.5 
.5 
.5 

.5 
.5 
.5 
.5 
.5 

.5 
.5 
.5 

18.5 
.9 

.6 
.5 
.5 
.5 

.5 

1.2 
1.2 
5.1 
1.6 
1.0 

1.0 
.9 
.5 
.5 
.5 

3.8 


1.4 
.7 

1.2 
.7 
.5 

.5 
.5 
.5 
.5 

.5 

.5 
2.9 
5.8 
1.2 
3.8 

1.2 

1.4 

1.2 

.9 

.9 

.9 

.9 
2.0 

1.4 
1.2 
1.4 
1.2 
.9 


0.9 
1.9 
1.9 
1.2 
1.2 

.9 
5.4 
2.0 
3.1 
1.9 

1.4 
1.4 
4.9 
1.2 
2.5 

1.4 
1.4 
1.2 
1.2 
1.2 

.1.2 

1.2 

.9 

.9 

.9 

.9 
1.2 
1.2 
1.4 
1.2 
1.2 


1.2 
.9 

6.5 
.9 
.9 

.9 

.9 

.9 

1.4 

3.8 

1.4 
1.2 
1.2 
.9 
.9 

.9 
.9 
.9 
.9 
5.4 

1.2 
1.2 
1.2 
.9 
.9 

.9 
1.2 
1.4 
1.4 
3.8 


3.8 
3.8 
1.9 
1.4 
1.4 

1.4 
.9 
.9 

1.2 
.9 

.9 
.9 
.6 
.6 
.6 

.5 
.5 
.5 
.5 
.5 

.5 
.5 
.5 
.5 
.9 

.9 
.6 
.6 
.9 
.5 
.5 


0.5 
.5 
.5 
.5 
.5 

.5 
.5 
.5 
.5 
.9 

.9 
1.9 
1.4 
1.4 
1.9 

1.4 
1.4 
1.4 
1.4 
1.4 

1.4 
1.4 
1.4 
1.4 
1.4 

1.4 
1.9 
6.5 
1.4 
1.4 
1.4 


1.9 


2 


3 8 


3 


1.4 


4 


1 4 


5 


1.4 


6.. 


1.4 


7 


.9 


8 


.9 


9 


.9 


10 


9 


n 


.9 


12 


.9 


13 


.9 


14 


1.4 




.9 




.6 


17 


5 




.5 


19 


1.4 




.5 




.5 


22 


.5 


23 


5 


24 


5 




.5 




.5 


27 


.5 




.5 


29 


.5 




.5 


31 









Monthly discharge of Lulumaha ditch at upper Nuuxinu reservoir, near Honolulu, Oahu, 

for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February. . 

March 

April 

May 

Jime 

July 

August 

September. 



8.0 
6.2 
18.5 
5.8 
5.4 
6.5 
3.8 
6.5 
3.8 



0.3 
.3 
.5 
.5 
.9 
.9 
.5 
.5 
.5 



1.09 
1.01 
1.48 
1.10 
1.63 
1.57 

.99 
1.32 

.95 



The period. 



67.0 
56.1 
91.0 
65.5 
100 
93.4 
60.9 
81.2 
56.5 

672 



78 



WATER RESOURCES OF HAWAII, 1913. 



PAUOA STREAM AT UPPER PAUOA VALLEY, NEAR HONOLULU, OAHU. 

Location. — In upper Pauoa Valley, 1,000 feet below Kahuawai Spring, about 1 mQe 
above Punchbowl, and about 2.5 miles northeast of Honolulu post office. 

Records available. — ^April 14, 1911, to December 31, 1913. 

Gage. — ^Watson weekly water-stage recorder October 17, 1911, to December 31, 1913; 
staff gage, graduated to tenths and read to hundredths, April 14 to October 16, 
1911. 

Control. — Permanent. , 

Discharge measurements. — April 14 to October 16, 1911, current-meter measure, 
ments made by wading; October 17, 1911, to December 31, 1913, by 4-foot sharp- 
crested weir that has been checked with current-meter measurements. 

Diversions. — Several small ditches and one pipe line divert part of low-water 
discharge. 

Regulation. — Stream is fed by several perennial springs within 2 miles above 
station. 

Discharge measurements of Pauoa Stream at upper Pauoa Valley, near Honolulu, Oahu, 

in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Mar 4 


G K Larrison 


Feet. 
0.16 
.15 
.11 


Sec.-n. 
91 


Sept. 11 
Oct. 2 


G.R.White 


54 


J. C. Dort 


.48 









Daily discharge, in second-feet, of Pauoa Stream at upper Pauoa Valley, near Honolulu, 

Oahu, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


2.19 
2.19 
2.08 
1.97 
1.97 

1.97 
1.87 
1.87 
4.85 
3.37 

5.43 
2.53 
4.43 
3.50 
3.00 

2.64 
2.30 
2.08 
1.97 
1.87 

1.77 
1.77 
1.66 
1.66 
1.66 

1.66 
1.57 
1.57 
1.57 
1.57 
1.47 


1.47 
1.37 
1.37 
1.28 
1.28 

1.28 
1.37 
1.37 
1.37 
1.37 

1.37 
1.37 
1.37 
1.37 
1.28 

1.19 
1.10 
1.10 
1.10 
1.10 

1.02 
1.02 
1.02 
.93 
1.02 

1.02 
1.02 
1.02 


0.93 
1.02 
.93 
.85 
.85 

.85 

.77 
.77 
.77 
.77 

.70 
.62 
.62 
2.30 
1.02 

.85 
.93 

.85 

.77 
.77 

.93 
1.19 
1.10 
1.02 

.93 

.85 
.93 
.93 

1.02 
.93 

3.63 


2.41 

1.77 
1.97 
2.08 
1.10 

1.10 

1.02 

1.02 

.93 

.85 

.85 
3.24 
14.1 
3.50 
2.41 

1.77 
3.89 
3.76 
2.76 
2.19 

1.66 
1.47 
2.19 
3.63 
8.48 

2.41 
1.87 
3.63 
4.29 
2.19 


8.31 
3.50 
2.41 
5.29 
7.64 

4.57 
3.00 
3.24 
3.63 
3.00 

2.53 
2.19 
2.08 
2.30 
2.19 

7.47 
5.43 
2.76 
2.19 
1.97 

2.08 
2.19 
2.08 
1.87 
1.77 

1.97 
1.97 
1.97 
1.97 
1.97 
1.87 


1.77 
1.77 
1.66 
5.14 
5.58 

2.64 
2.53 
2.30 
2.08 
3.24 

4.16 
3.37 
2.41 
2.19 
1.97 

1.97 
1.77 
1.77 
1.77 
4.16 

2.19 
1.77 
1.57 
1.57 
1.47 

1.47 
1.47 
3.37 
1.97 
2.64 


4.16 
6.56 
3.50 
2.41 
3.12 

1.97 
1.57 
1.57 
1.77 
1.57 

1.57 
1.47 
1.47 
1.37 
1.37 

1.37 
1.37 
1.37 
1.37 
1.37 

1.37 
1.19 
1.37 
1.77 
1.37 

1.19 
1.02 
1.37 
1.28 
1.28 
.70 


0.70 
.70 
.62 
.85 

1.02 

1.02 
1.02 
1.02 
.93 
.93 

.85 
.93 
.93 
.93 
.85 

.85 
.77 
.77 
.77 
.77 

.77 
.85 
.85 
.77 
.77 

.85 
.85 
.85 
.86 
.87 
.88 


0.89 
.90 
.91 
.92 
.93 

.93 

.85 
.85 
.77 
.77 

.77 
.77 
.77 
.85 
.85 

.77 
.77 
.85 
1.10 
.77 

.77 
.70 
.70 
.70 
.70 

.62 
.62 
.55 
.62 
.62 


0.55 
.55 
.55 
.55 
.55 

.55 
.55 
.55 
.55 
.55 

.55 
.62 
.70 
.62 
.55 

..55 
.55 
.55 
.55 
.55 

.55 
,55 
.55 
.55 
.55 

.55 
.55 
.55 
.55 
.55 
.55 


0.55 
.55 
.55 
.55 
.55 

.94 
1.32 
1.70 
2.09 
2.48 

2.86 
3.24 
3.63 
2.08 
1.47 

1.19 
1.02 
2.08 
3.24 
6.82 

3.76 
1.97 
1.66 
3.76 
16.2 

12.9 
5.58 
3.37 
2.76 
3.24 


2.88 


2 


2.76 


3 


12.5 


4 


8.14 


5 


6.66 


6 


6.98 


7 


6.19 


g 


5.29 


9 


6.29 


10 


5.14 


11 


4.57 


12 


4.29 


13 


4.29 


14 


4.29 


15 


4.29 


16 


4.16 


17 


4.16 


18 


3.76 


19 


3.76 


20 


3.76 


21 


3.63 


22 


3.63 


23 


3.54 


24 


3.46 


25 


3.37 


26 


3.24 


27 


3.00 


28 


2.88 


29 


2.88 


30 


2.76 


31 


2.64 







ISLAND OF OAHU, 



79 



Monthly discharge of Pauoa Stream at upper Pauoa Valley, near Honolulu, Oahu, for 

1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



5.43 
1.47 
3.63 
14.1 
8.31 
5.58 
6.56 
1.02 
1.1 
.7 
16.2 
12.0 



16.2 



1.47 
.93 
.62 

.85 
1.77 
1.47 
.7 
.62 
.55 
.55 
.55 
2.64 



.55 



2.32 

1.21 

1.01 

2. 82 

3.14 

2.44 

1.81 

.85 

.79 

.56 

3.14 

4.46 



2.05 



143 

67.2 

62 
168 
193 
146 
111 

52.3 

47 

34.4 
187 
274 



1,480 



KAHUAWAI SPRING AT UPPER PAUOA VALLEY, NEAR HONOLULU, OAHU. 

Location. — In upper Pauoa Valley, one-fourth mile above Pauoa Stream weir station, 
about 1\ miles above Punchbowl, and about 2f miles northeast of Honolulu post 
office. 

Records available. — September 23, 1912, to December 31, 1913. 

Gage. — A 2 by 2 inch stake driven into pool of spring, with nail in top, 6 feet above 
weir, to measure head on weir. Head is read twice daily to hundredths. 

Control. — Spring boils up vertically in pool about 10 feet in diameter. Weir is built 
between rock abutments on south side of pool about 10 feet from center. 

Discharge. — Computed by Francis formula for sharp-crested weirs with end con- 
tractions. Weir has 1.5-foot crest length. 

Monthly discharge of Kahuawai Spring at upper Pauoa Valley, near Honolulu, Oahu, 

for 1913. . 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean. 



Run-ofE 
(total in 
acre-feet). 



Accu- 
racy, 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



0.54 
.50 
.50 
.50 
.54 
.54 
.54 
.50 
.50 
.50 
.54 
.54 



0.50 
.47 
.47 
.50 
.50 
.50 
.50 
.50 
.50 
.50 
.50 
.54 



0.50 
.50 
.48 
.50 
.51 
.62 
.50 
.50 
.50 
.50 
.53 
.54 



.54 



.47 



30.7 
27.8 
29.5 
29.8 
31.4 
30.9 
30.7 
30.7 
29.8 
30.7 
31.5 
33.2 



367 



80 



WATER RESOUECES OP HAWAII, 1913. 



MANOA STREAM AT UPPER MANOA VALLEY, NEAR HONOLULU, OAHU. 

Location. — Below confluence of two main branches in upper Manoa Valley, about 

5 miles east of Honolulu post office. 
Records available.— October 6, 1910, to July 5, 1913. 
Gage. — Vertical staff. 
C ontrol. — Shifting . 
Discharge measurements. — ^Made by wading for low and medium stages up to a 

gage height of about 4.0 feet; above this stage from footbridge at gage. 
Diversions. — Several small irrigation ditches divert a part of the low-water discharge 

from the branches of the stream above the station. Most of this water returns to 

the stream by seepage and drains above the station. 
Accuracy. — Records poor. 

Discharge measurements of Manoa Stream, at upper Manoa Valley, near Honolulu, Odhu, 

in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Feb. 28 


G. K. Larrison 


Feet. 
2.93 
3.36 


Sec. ft. 
1.08 
6.06 


Apr. 14 


J. C. Dort 


Feet. 
3.70 


Sec. ft. 

18.5 


Mar. 21 


J. C. Dort 













Monthly discharge of Manoa Stream at upper Manoa Valley, near Honolulu, Oahu, for 

1913. 



Month. 


Discharge in second-feet. 


Run-ofl 
(total in 
acre-feet). 


Accu- 


Maximum. 


Minimum. 


Mean. 


racy. 




5.1 
12.2 
15 
33 
39 
38 
13 


1.2 
1.1 
1.1 

2.5 
7.9 

7.2 
10 


2.43 
2.70 
3.40 
11.5 
13.6 
12.2 
11.6 


149 
150 
209 
684 
836 
726 
115 


D. 


February 


D. 


March 


D. 


April 


D. 


Mav 


D. 




D. 


July 1-5 


D. 






The period 








2,870 















Note. — Two stations were established on the east and west branches of Manoa Stream May 29, 1913. 
These stations are above all diversions and are intended to supplant the old station, which was discon- 
tinued July 5, 1913. 



MANOA STREAM AT COLLEGE OF HAWAII, NEAR HONOLULU, OAHU. 

Location. — In gorge about one-half mile southeast of College of Hawaii, and 3 miles 

east of Honolulu post office. 
Records available. — Daily discharge from March 23, 1909, to November 24, 1910; 

November 1, 1912, to April 26, 1913; September 10 to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 
Discharge measureraents. — ^Made by wading. 
Diversions.— Several irrigation ditches above station. 
Accuracy. — Records poor. 
Cooperation- — ^Maintained in cooperation with the College of Hawaii. 



ISLAND OF OAHU. 



81 



Discharge measurements of Manoa Stream at College of Hawaii, near Honolulu, Oahu, in 

1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Feb 28 


G. K. Larrison 


Feet. 
0.95 
2.09 


Sec. ft. 
0.99 
26.0 


Apr. 14 
17 


J. C. Dort . . 


Feet. 
2.40 
2.64 


Sec. ft. 
39 4 


Mar. 21 


J. C. Dort 


Dort and White 


56 7 









Daily discharge, in second-feet, of Manoa Stream, at College of Hawaii, near Honolulu, 

Oahu, for 1912-13. 



Day. 


Nov. 


Dec. 


Day. 


Nov. 


Dec. 


Day. 


Nov. 


Dee. 


1912. 
1 


2.6 
2.0 
3.0 
1.1 
3.9 

2.0 
7.0 
3.0 
29 
3.8 


35 
38 
169 
29 
22 

19 

17 

11 
7.0 
7.0 


11 
12 
13 

14 
15 

16 
17 

18 
19 
20 


1912. 


4.8 
5.5 
2.0 
1.2 
6.2 

2.5 
2.0 
2.2 
2.3 
2.0 


4.0 
2.0 
3.5 
3.5 
2.0 

1.8 
1.5 
1.8 
31 
6.7 


21. 
22. 
23. 
24. 
25. 

26. 
27. 
28. 
29. 
30. 
31. 


1912. 




33 
35 
38 
18 
11 

7.0 
7.0 

62 

33 

14 


20 


2 








106 


3 








33 


4 








155 


5 








20 


6 








45 


7 








29 


7 








20 


9 








7 


10 








7.0 










7.0 












Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1913. 
1 


7.0 
7.0 
3.2 
2.0 
2.0 

2.0 
2.0 
2.0 
4.0 
7.0 

10 
6.0 
14 
18 
12 

6.4 
4.6 
3.6 
3.4 
2.8 

6.1 
4.8 
4.9 
4.3 
3.0 

2.6 
2.0 
2.0 
1.9 
.9 
2.0 


0.9 
1.2 
1.4 
1.3 
1.0 

1.9 
6.7 
6.1 
2.6 
1.8 

1.6 

1.2 

1.0 

.9 

.9 

.9 
1.0 
9.0 
11 
3.2 

1.2 
1.0 
1.8 
2.7 
3.2 

2.4 
1.6 
1.0 


1.0 

.9 

.9 

1.2 

1.4 

1.2 
1.2 
1.1 
1.2 
1.3 

" 1.2 
1.2 
1.2 
6.4 
8.0 

6.4 
3.4 
2.6 
1.8 
4.4 

3.6 
10 
4.6 
3.4 
3.1 

3.3 
2.2 
2.8 
3.7 

15 

11 


5.8 
6.4 
4.3 
3.1 
2.4 

1.9 
1.9 
2.6 
2.5 
20 

13 
21 

57 
37 
48 

64 
33 
24 
24 
19 

13 

9.8 
18 

8.4 
67 

18 












0.5 
.5 
.5 
.5 
.5 

.5 
.5 
.5 
.5 
.5 

. 5 
.4 
.4 
.7 
.6 

.6 
.6 
.5 
.5 
.5 

.5 
.5 
.5 
.5 
.5 

.5 
.5 
.6 
.6 
.6 


0.6 
1.5 
2.5 
1.0 

.8 

.9 
1.0 
15 
31 
32 

36 
31 
27 
12 
9.4 

3.8 
4.6 
6.7 

23 

61 

31 

9.8 
9.4 
32 

75 

141 
50 
27 
18 
17 


11 


2 












8 


3 












44 


4 












102 


5 












41 


6 












44 


7 












65 


8 












28 


9 












18 


10 










0.6 

.5 

.5 

.6 

1.2 

1.0 

. 7 
4.9 
1.1 

.8 
.8 
.8 

.0 

.c 

.5 
.5 
.5 


12 


11 










9 4 


12 










7 8 












7 


14 










8 


15 










6 4 


16 










4 8 


17 










4 6 












5 8 


19 










3 9 


20 










3 1 












3 1 


22 : 










2 8 












1 9 


24 










1 4 


25 










1 


26 










.9 


27 










g 














9 


29 












g 


30 












8 


31 












7 





























Note.— No record Apr. 27 to Sept. 9, 1913. 
97764°— wsp 373—15 6 



82 



WATER RESOUECES OF HAWAII^ 1913. 



Monthly discharge of Manoa Stream at College of Hawaii, near Honolulu, Oahu, for 

1912-13. 



November. 
December. 



January 

February 

March 

April 1-26 

September 10-30. 

October 

November 

December 



The period . 



Month. 



1912. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



62 
169 



18 

11 

15 

67 

4.9 

.7 

141 

102 



1.1 
1.5 



0.9 
.9 
.9 

1.9 
.5 
.4 
.6 
.7 



11.5 
27.8 



4.95 
2.52 
3.57 
2.02 
.90 
.52 
23.7 
14.5 



Run-off 
(total in 
acre-feet). 



684 
1,710 



304 

140 

220 

1,040 

38 

32 

1,410 



4,080 



Accu- 
racy. 



EAST BRANCH OF MANOA STREAM AT UPPER MANOA VALLEY, NEAR 

HONOLULU, OAHU. 

Location. — About 4 miles northeast of Honolulu post office, in upper Manoa Valley, 
about 200 feet above highway bridge, and 600 feet above confluence of two branches. 

Records available. — May 29 to December 31, 1913. 

Gage. — Vertical staff. 

Control. — Somewhat shifting at high water. 

Diversions. — One irrigation ditch diverts water above station. 

Discharge measurements. — For low and medium stages, made by wading just 
below highway bridge; for floods, from bridge. 

Accuracy. — Records good. 

Discharge measurements of East Branch of Manoa Stream at upper Manoa Valley, near 

Honolulu, Oahu, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


June 23 


G. K. Larrison 


Feet. 
2.19 
2.07 
2.54 


Sec.-ft. 
2.41 
1.63 
4.91 


Nov. 12 
Dec. 4 


J. C. Dort 


Feet. 
2.84 
3.38 


Sec. -ft. 
10.2 


Sept. 11 
Nov. 10 


....do 


G. R. White 


24.0 


J. C. Dort 













ISLAND OF OAHTJ. 



83 



Daily discharge, in second-feet, of East Branch of Manoa Stream at upper Manoa Valley, 
near Honolulu, Oahu,for 1913. 



Day. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 




1.9 
1.9 
19 
3.2 
2.6 

2.7 
2.6 
2.6 
3.3 
3.7 

3.0 
2.3 
2.1 
2.0 
2.0 

2.0 
2.0 
2.0 
2.3 

88 

2.2 
2.1 
2.0 
2.0 
2.1 

2.1 
2.1 
2.0 
2.0 
2.1 


2.1 
2.1 
2.1 
2.1 
2.1 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.2 
2.3 
2.0 

1.9 
1.9 
1.9 

1.8 
1.8 

1.8 
1.8 
1.8 
1.8 
1.9 

2.0 
1.8 
2.0 
1.8 
1.8 
1.8 


1.8 
1.8 
1.7 
1.7 
1.7 

1.8 
1.8 
1.7 
1.7 
2.2 

1.8 
5.6 
2.0 
1.9 
1.8 

1.8 
2.2 
1.9 
1.8 
1.8 

1.9 
1.9 
2.0 
2.0 
2.0 

2.0 
1.9 
2.2 
2.0 
2.0 
3.6 


1.7 
2.0 
1.8 
1.7 
1.7 

5.4 
1.7 
1.7 
1.6 
1.6 

1.6 
1.7 
1.9 
1.7 
1.6 

1.6 
1.5 
1.7 
2.1 
1.6 

1.8 
1.7 
1.6 
1.6 
1.6 

1.5 
1.5 
1.7 
1.6 
1.6 


1.6 
1.5 
1.5 
1.5 
1.6 

1.6 
1.7 
2.1 
1.6 
1.6 

1.5 
1.5 
1.9 
1.8 
1.6 

2.0 
1.6 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 

1.6 
1.6 
1.5 
1.6 
1.5 


1.5 
1.8 
1.6 
1.5 
1.6 

1.6 
15 

7.8 
7.4 
3.8 

4.3 

7.4 
6.6 
4.5 
3.2 

2.4 
2.4 
4.8 
8.3 
45 

8.8 
5.6 
4.4 
4.3 
14 

17 

15 
8.3 
6.1 

5.8 


3.0 


2 




4.5 


3 




20 


4 




23 


5 




14 


6 




14 


7 




18 


8 




5.2 


9 




7.4 


10 




5.8 


11 




5.7 


12 




5.3 


13 




5.2 


14 




4.8 


15 




4.6 


16 




4.2 


17 




3.8 


18 




3.6 


19 




3.0 


20 




3.4 


21 




3.3 


22 




3.0 


23 




2.8 






2.8 


25 




2.8 






2.8 


27 




2.8 


28 




2.8 


29 


2.2 
2.0 
1.9 


2.8 


30 


2.8 


31 


2.8 







Note. — Discharge July 1-10 estimated by comparison witli other stream run-off in yicinity. 

Monthly discharge of East Branch of Manoa Stream at upper Manoa Valley, near Hono- 
lulu, Oahu, for 1913. 



May 29-31. . 

June , 

July 

August 

September. 

October 

November. . 
December. . 



Month. 



The period . 



Discharge in second-feet. 



Maximum. Minimum. Mean 



2.2 

88 
2.3 
5.6 
5.4 
2.1 

45 

23 



1.9 
1.9 
1.8 
1.7 
1.5 
1.5 
1.5 
2.8 



2.03 
5.72 
1.95 
2.06 
1.80 
1.60 
7.39 
6.13 



Run-off 
(total in 
acre-feet) . 



12. 
340 
120 
127 
107 

98. 
440 
377 

1,620 



Accu- 
racy. 



84 



WATER EESOUECES OF HAWAII, 1913. 



WEST BRANCH OF MANOA STREAM AT UPPER MANOA VALLEY, NEAR 

HONOLULU, OAHU. 

Location. — ^About 150 feet above highway bridge in upper Manoa Valley, and 4 miles 

northeast of Honolulu post office. 
Records available. — ^May 29 to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Somewhat shifting. 
Discharge measurements. — At low and medium stages made by wading; flood 

measurements made from footbridge. 
Diversions. — None above station. 
Accuracy. — Records good. 

Discharge measurements of West Branch of Manoa Stream, at upper Manoa Valley, near 

Honolulu, Oahu, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


June 23 


G. K. Larrison 


Feet. 
1.84 
1.53 


Sec.-ft. 

2.44 

.68 


Nov. 10 
Nov. 12 


J. C. Dort 


Feet. 
2.62 
2.95 


Sec.-ft. 
10.1 


Sept. 11 


do 


.. ..do 


19.2 







Daily discharge, in secondfeet, of West Branch of Manoa Stream,, at upper Manoa Valley, 
near Honolulu, Oahu, for 1913. 



Day. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 




1.4 
1.2 
14 
3.4 
2.4 

2.6 
1.8 
1.3 
4.4 
5.4 

4.0 
3.1 
6.4 

16 

16 

2.3 
2.1 
2.2 
3.5 

68 

3.4 
2.6 
2.1 
1.9 
1.9 

1.9 
1.9 
2.6 
1.7 
1.8 


1.9 
2.0 
2.0 
2.1 
2.1 

2.2 
2.2 
2.3 
2.3 
2.4 

2.5 
2.4 
2.3 
1.8 
2.0 

1.9 
1.3 
1.6 
1.4 
1.6 

1.7 
1.4 
1.8 
2.7 
1.7 

1.5 
2.0 
1.7 
2.0 
1.9 
1.8 


1.3 

1.4 
1.5 
1.4 

1.8 

1.3 
1.5 
1.1 
1.2 
3.5 

1.3 
8.0 
2.0 
1.6 
1.2 

1.2 
2.5 
. 1.4 
1.1 
1.2 

1.0 
.9 
.9 
.9 
.9 

.7 
.7 
1.2 
1.7 
1.1 
3.5 


4.0 
2.6 
1.4 
1.2 
1.3 

1.0 
.8 
.7 
.6 
.6 

.6 

.7 

1.6 

1.6 

.8 

.7 

.6 

1.1 

3.4 

1.6 

1.2 
.9 
.9 
.9 

.8 

.7 
.6 
.5 
.8 
.6 


0.6 
.2 
.5 
.5 
.6 

.6 
.7 
3.5 
.8 
.6 

.5 
.5 

.8 
.4 
.7 

2.2 
.6 
.5 
.5 
.5 

.4 
.4 
.4 
.4 
.4 

.4 
.7 
1.4 
.6 
.4 
.4 


0.4 
.8 

1.0 
.7 
.6 

.6 
6.0 
8.2 
13 
9.2 

12 
15 
10 
5.8 

4.7 

4.1 
4.3 
5.4 

10 

22 

9.7 
6.4 
4.3 
9.4 

8.5 

23 

17.0 
9.2 
7.3 
5.6 


4.7 


2 




4.5 


3 




14 


4 




18 


5 




10 


6 




11 


7 




8.2 


8 




6.8 


9 




4.6 


10 




4.6 


11 




4.3 


12 




8.6 


13 




4.1 


14 




3.5 


15 




1.3 


16 




.1 


17 




1.4 


18 




.1 


19 




.8 


20 




3.8 


21 




4.0 


22 




1.8 


23 




3.0 


24 




2.6 


25 




2.5 


26 




2.4 


27 




2.3 


28 




2.1 


29 


1.6 
1.6 
4.6 


2.0 


30 


2 


31 


1.9 







Note. — Discharge estimated July 1-10. 



ISLAND OF OAHU. 



85 



Monthly discharge of West Branch of Manoa Stream at upper Manoa Valley, near Hono- 
lulu, Oahu, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 

(total in 

acre-feet). 



Accu- 
racy. 



May 29-31. 

June , 

July , 

August 

September. 

October 

November.. 
December.. 



The period. 



4.6 

68 
2.7 
8.0 
4.0 
3.5 

23 

18 



1.6 
1.2 
1.3 

.7 
.5 
.2 
.4 
.1 



2.60 
6.11 
1.95 
1.65 
1.16 
.70 
7.81 
4.55 



15.5 
364 
120 
101 

69 

43 
465 
280 



1,460 



WAIOMAO STREAM AT UPPER PALOLO VALLEY, NEAR HONOLULU, OAHU. 

Location. — ^About 3 miles above Pukele in Palolo Valley, and about 9 milea from 
Honolulu post office, at an elevation of 900 feet. 

Records avaHable.— October 10, 1911, to July 12, 1913. 

Gage. — ^Watson water-stage recorder above 3-foot sharp-crested weir; datum un- 
certain on account of leaks under weir. 

Control. — Shifting. 

Discharge raeasurements. — Made by wading. 

Diversions. — New pipe line diverted all low-water discharge for Honolulu water 
supply after July 12, 1913. 

Accuracy. — Kecords fair. 

Regulation. — Stream drains Kaau Crater and is regulated by springs. 

Discharge ineasurements of Waiomao Stream at upper Palolo Valley, near Honolulu, 

Oahu, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Feb. 26 


G. K. Larrison 


Feet. 
0.12 

.08 


Sec.-ft. 
0.49 


Apr. 8 


do 


.29 









86 



WATEE EESOUECES OF HAWAII^ 1913. 



Daily discharge, in second-feet, of Waiomao Stream at upper Palolo Valley, near Honolulu, 

Oahu, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1 


0.37 
.27 
.27 
.27 
.62 

.32 
.27 
.23 
.27 
.37 

.89 
.58 
.70 
.58 
.64 

.70 
.42 
.47 
.47 
.42 

.37 
.37 
.32 
.27 
.23 

.19 
.23 
.19 
.19 
.19 
.27 


0.19 
.19 
.19 

.42 
4.08 

1.64 
1.48 
1.72 

.82 
.58 

.47 
.37 
.32 
.27 
1.89 

2.52 
2.16 
3.02 
2.25 
1.32 

.89 
.70 
.64 
.89 
.64 

.58 
.52 
.42 


0.37 
.37 
.37 
.32 
.32 

.32 

.52 
.47 
.37 
.32 

.32 

.27 

.27 

3.32 

2.07 

1.17 
.89 
.64 
.52 
.47 

1.64 
1.89 
1.32 
1.98 
1.72 

1.17 

1.10 

.76 

.64 

1.10 

.89 


0.96 
.70 
.70 

.58 
.47 

.37 
.32 
.32 
.32 
.32 

.76 
1.24 
4.08 
2.52 
1.80 

3.22 
3.22 
1.89 
1.40 
1.10 

.82 

.82 

1.10 

1.03 

5.48 

1.80 

1.10 

.96 

.82 
.64 


0.58 
1.10 
1.17 

.82 
.64 

.47 
1.10 
3.64 
1.64 
1.24 

1.03 

4.88 
3.75 
2.34 
2.16 

1.72 
1.56 
1.17 
1.03 
.76 

.64 
.58 
.53 
.48 
.42 

.37 
.52 
.37 
.37 
.37 
.32 


0.32 
.37 
4.30 
3.02 
1.56 

1.32 
.89 
.76 
.70 
.64 

.52 
.82 

1.03 
.76 

1.64 

2.82 
2.16 
1.24 
1.03 
1.64 

1.03 
.76 
.64 
.52 

.47 

.47 
1.64 
3.12 
1.48 
1.48 


1.24 


2 


1.56 


3 


1.17 


4 


.89 


5 


.89 


6 


.64 


7 


.70 


8 


.52 


9 


.52 


10 . 


.42 


11 


.42 


12 .. 


.52 


13 




14 . 












17 








19 




20 








22 .. 




23 




24 












27 




28 . 




29 








31 











Note. — Discharge May 22-24 estimated. 

Monthly discharge of Waiomao Stream at upper Palolo Valley, near Honolulu, Oahu, for 

1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum, 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January . . 
February. 

March 

April 

May 

June 

July 1-12. 



0.89 
4.08 
3.32 
5.48 
4.88 
4.30 
1.56 



0.19 
.19 
.27 
.32 
.32 
.32 
.42 



0.38 
1.11 

.90 
1.36 
1.22 
1.30 

.79 



23.4 
61.6 
55.3 
80.9 
75.0 
77.4 
18.8 



The period . 



390 



WAIMANALO DITCH BELOW MAIN RESERVOIR ON THE WAIMANALO 
PLANTATION, NEAR WAIMANALO, OAHU. 

Location. — On main ditch immediately below main reservoir of the Waimanalo 
plantation, about 2 miles southwest of the plantation headquarters. Waimanalo 
is about 15 miles east of Honolulu. 

Records available. — November 1, 1912, to December 31, 1913. 

Gage. — Vertical staff, read twice daily to quarter-tenths. 

Control. — Probably permanent. 

Discharge measurements. — Made by wading. 

Diversions. — Ditch is outlet of the main reservoir on the Waimanalo plantation. 

Accuracy. — Records good . 

Cooperation.— Maintained in cooperation with the Waimanalo Plantation Co. 



ISLAND OF OAHIT. 



87 



Discharge vieasurements of Waimanalo ditch beloiv main reservoir on the Waimanalo 
'plantation, near Waimanalo, Oahu, in 1913. 



Date. 


Hydrographer. 


Case 
height. 


Dis- 
charge. 


Apr 11 


G. K. Larrison. . 


Feet. 
1.18 
1.42 


Sec.-ft. 
6.15 


bept. 9 


G. R. AVhite 


7.53 







Daihj discharge, in second-feet, cf Waimanalo ditch below main reservoir on the Waimanalo 
plantation, near Waiynanalo, Oahu, for 1912-13. 



Day. 


Nov. 


Dec. 


Day. 


Nov. 


Dec. 


Day. 


Nov. 


Dec. 


1 


1912. 


6.9 

6.7 
6.9 
7.1 
7.2 

6.9 
6.9 
6.6 
7.2 
7.4 


7.4 
7.4 
7.4 
7.4 
7.4 

7.4 
7.4 
7.4 
7.4 


11. 
12. 
13. 
14. 
15. 

16. 
17. 
18. 
19. 
20. 


1912. 


7.5 
7.3 
7.0 
7.0 
7.3 

6.9 
7.1 
7.3 
7.3 
6.9 




21. 
22. 

24: 

25. 

26. 
27 
23 ! 
29. 
30. 
31. 


1912. 


7.1 
7.3 
6.9 
7.1 
7.3 

7.0 
7.3 
6.9 

7.4 
7.4 




2 










3 










4 










5 










6 




















g 





















lu 

































Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1913. 
1 - . 


7.0 
6.7 
6.9 
7.1 






6.2 
6.2 
6.2 
6.2 
6.2 

6.2 
6.2 
6.2 
6.2 
6.2 

6.2 
6.2 
6.2 
6.2 
6.2 

6.2 
6.2 
6.2 
6.2 
6.2 

6.3 
6.3 
6.3 
6.3 
6.5 

6.5 
5.6 
6.8 
6.2 

7.4 


6.8 
7.4 
7.4 
5.1 
7.3 

7.3 
7.3 

7.4 
7.3 
7.3 

6.7 


6.7 
7.3 

""7.'3' 
7.5 


7.4 
6.9 
6.9 
7.1 
6.9 

7.2 
7.5 
7.4 
7.8 
7.5 

7.5 
7.3 
7.6 

7.8 
7.5 

7.5 
7.4 
7.4 
7.3 
7.4 

7.5 
7.5 
7.4 
7.3 
7.3 

6.9 
6.9 
6.9 
6.9 
6.9 
6.9 


7.3 
6.9 
7.2 

7.4 
7.4 

6.9 
6.8 
6.8 
6.8 
7.1 

7.4 
7.4 
7.4 

7.4 
7.4 

6.8 
7.1 
7.4 
7.1 
7.1 

7.1 
7.1 
6.8 
7.1 

7.4 

7.4 
7.1 
7.1 
6.9 
6.8 
7.0 


7.3 
7.3 
6.8 
6.8 
6.8 

6.8 
7.0 
7.3 
7.3 
6.8 

6.8 
6.8 
6.8 
7.0 
7.3 

7.3 
6.8 
6.8 
6.8 
6.8 

7.0 
7.3 
7.3 
6.8 
6.8 

6.8 
6.8 
7.0 
7.3 
7.1 


6.8 
6.8 
6.8 
6.8 
7.1 

7.4 
7.1 
6.8 
6.8 
6.8 

6.8 
7.1 
7.4 
7.1 
6.8 

6.8 
6.8 
6.8 
7.1 
7.4 

7.1 
6.8 
6.8 
6.8 
6.8 

7.1 
7.4 

7.4 
6.8 
6.8 
6.8 


■6.8 
7.1 
7.4 
7.4 
6.8 

6.8 
6.8 
6.8 
7.1 

7.4 

7.1 
6.8 

6.8 
6.8 
6.8 

7.1 
7.4 
7.4 
7.1 
6.8 

6.8 
6.8 
7.1 

7.4 
7.4 

7.4 
7.4 
7.4 
7.4 


7 4 


2 






7.4 


3 




6.8 
6.8 
6.8 

6.8 
6.8 
6.7 
6.8 
6.8 

6.8 
6.8 
6.8 
6.8 


7 4 


4 


7.4 


5 




6 








7 








8 








9 . ; 








10 








11 








12.... 








13 












14 












15 












16 






5.6 
5.6 
6.8 
6.8 
6.8 

6.8 
6.8 
6.8 
6.8 
6.5 

6.2 
6.2 
6.2 
6.2 
6.2 
6.2 


"'6.'2' 

6.2 
6.7 
6.9 
7.4 
6.3 

7.3 

7.4 
6.9 
6.9 
7.4 
7.3 


6.8 
6.8 
6.2 
6.2 
6.2 

6.5 
6.1 
6.9 
6.9 
6.7 

6.9 
7.1 
7.1 
6.2 

7.3 




17 








18 








19 








20 








21 




^ 




22 








23 








24 








25 








26 








27 








28 








29 








30 








31 





















Note.— Ditch dry Dec. 10-31, 1912; Jan. 5 to Mar. 2, May 12-19, June 3-8, 11-15, and Dec. 6-31, 1913. 
Discharge given is for period of about 10 hours daily. During remaining 14 hours ditch was dry. Dis- 
charge interpolated Sundays from July to December, as gage was not read. 



88 



WATER RESOURCES OF HAWAII, 1913- 



Monthly discharge of Waimanalo ditch below main reservoir on the Waimanalo -plantation, 
near Waimanalo, Oahu, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 1-4 

Februs'ry 

March 3-14,16-31... 

April 

May 1-11,20-31 

June 1,2,9,10,16-30. 

July 

August 

September 

October 

November 

December 1-4 



7.1 



6.7 



6.92 



6.8 
7.4 
7.4 
7.3 
7.8 
7.4 
7.3 
7.4 
7.4 
7.4 



5.6 
5.6 
5.1 
6.1 
6.9 
6.8 
6.8 
6.8 
6.8 
7.4 



6.57 
6.27 
6.97 
6.76 
7.28 
7.13 
6.99 
6.96 
7.09 
7.40 



152 
155 
132 
106 
187 
183 
173 
178 



The period . 



1,760 



Note. — Ditch dry during February. Water turned out of ditch Dec. 4. 
MAKAWAO DITCH AT MAKAWAO FLUME, NEAR WAIMANALO, OAHU. 

Location. — At west end of flume in Kailua Valley, 4 miles west of Waimanalo, and 

11 miles by road from Honolulu; previous to November 24, 1913, at east end of 

flume. 
Records available. — November 1, 1912, to December 31, 1913. 
Gage. — Staff; new datum beginning November 24, 1913. 
Control. — Practically permanent. 
Discharge measurements. — November 1, 1912, to November 23, 1913, made by 

current-meter in open flume; November 24 to December 31, 1913, by 2.5-foot 

sharp-crested weir with end contractions. 
Diversions. — Ditch diverts all low water from headwaters of Kaimi and Makawao 

streams and discharges into the Waimanalo Reservoir. 
Accuracy. — Records poor. 
Cooperation.^ — Observer furnished by Waimanalo Plantation Co. 

Discharge measurements of Malcawao ditch at Mahawao flume, near Waimanalo, Oahu, 

in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Apr. 11 


G. K. Larrison 


Feet. 

0.59 

.70 


Sec.-ft. 
3.03 
1.96 


Oct. 20 


J. C. Dort 


Feet. 
0.65 


Sec. -ft. 
1.79 


Sept. 9 


G.R.White 













Monthly discharge of Mahawao ditch at Mahawao flume, near Waimanalo, Oahu, for 1913. 



Discharge in second-feet. 



Maximum. Minimum. Mean. 



Run-oflE 

(total in 

acre-feet). 



Accu- 
racy. 



March 3-31 

April , 

May 

June 

July 

August 

September 

October 

November 

December 1-3 , 

The period (276 days) 



5.4 
7.3 
7.9 
4.4 
3.2 
3.2 
2.7 
2.1 
6.0 
3.6 



2.0 
3.0 
2.6 
2.3 
1.9 
2.1 
1.6 
1.6 
1.9 
1.9 



3.75 
4.08 
3.88 
3.16 
2.43 
2.57 
1.97 
1.95 
3.29 
2.97 



216 
243 
239 
188 
149 
158 
117 
120 
196 
17.1 



3.00 



1,640 



Note.— Ditch dry Jan. 1 to Mar. 2 and Dec. 4-31. 



ISLAND OF OAHU. 



89 



MAKAWAO STREAM IN KAILUA VALLEY, NEAR KAILUA, OAHU. 

Location. — One-fourth mile upstream from confluence of Makawao and Kaimi 
streams, and 100 feet above intake of irrigation ditch on Waimanalo-Honolulu 
road; about 12^ miles east by road from Honolulu. 

Records available. — November 12, 1912, to December 31, 1913. 

Gage. — Vertical staff. 

Control. — Probably permanent. 

Discharge measurements. — Made by wading and from footbridge. 

Diversions. — Low-water discharge of two main branches is diverted into Makawao 
ditch about three-fourths mile above station. An irrigation ditch diverts most 
of the low-water discharge at a point about 100 feet below the gage. 

Accuracy. — Records fair. 

Cooperation. — ^Maintained in cooperation with the Kaneohe Ranch Co. 

Discharge measurements of Makawao Stream in Kailua Valley, near Kailua, Oahu, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Apr. 11 


G. K. Larrison 


Feet. 
0.94 
1.37 


Sec.-ft. 
1.92 
9.11 


Sept. 9 
Dec. 10 


J. C. Dort 


Feet. 
0.90 
1.32 


Sec. -ft. 
1.81 




do 


G. R. White 


7.09 











Daily discharge, in second-feet, of Makawao Stream in Kailua Valley, near Kailua, Oahu, 

for 1912-13. 



Day. 


Nov. 


Dec. 


Day. 


Nov. 


Dec. 


Day. 


Nov. 


Dec. 


1.. 


1912. 




11 

27 

44 
4.4 
3.7 

1.4 
2.1 
2.3 
2.6 
2.2 


11. 
12. 
13. 

14. 
15. 

16. 
17. 
18. 
19. 
20. 


1912. 




2.2 
2.3 
2.2 
1.9 
1.9 

1.9 
1.9 
2.2 
2.2 
1.9 


21. 
22. 
23. 
24. 
25. 

26. 
27. 
28. 
29. 
30. 
31. 


1912. 


1.3 
1.3 
1.1 
1.1 
1.1 

1.1 
1.1 
1.6 
1.3 
1.1 


1.7 
2.1 


2 






1.0 
1.0 
1.1 
1.1 

1.1 
1.0 
1.0 

1.1 

1.0 




1.8 


3 








1.8 


4 








1.7 


5 










6 








1.7 
1.7 


7 








1.7 


8 








1.7 


9 








1.7 


10. 








1.7 























90 



WATER EESOUECES OF HAWAII^ 1913. 



Daily discharge, in second-feet, of Makawao Stream in KailuaValley , near Kailua, Oahu, 

for iSi^-^ 5— Continued. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1913. 
1 




2.2 
2.2 
2.1 
1.9 
3.1 

11 
6.8 
4.1 
3.2 
2.5 

1.6 
1.4 
.9 
1.6 
2.5 

11 
14 
14 
9.9 
11 

9.4 
6.3 
3.2 
2.7 
4.1 

4.1 
3.6 
2.9 


3.1 
3.6 

2.7 
2.9 

2.7 

2.9 
1.9 
1.8 
1.9 

2.2 

1.9 
1.6 
1.1 
1.3 
1.1 

1.0 
14 
5.1 
4.6 
3.6 

3.1 
2.3 
1.8 
3.1 

2.8 

3.2 
4.4 
3.6 
2.6 
2.6 
2.5 


2.3 
2.3 
2.5 
2.5 
2.9 

3.4 
3.1 
2.5 
2.3 
2.1 

2.1 
2.2 
2.4 
2.1 
2.1 

6.1 
2.8 
2.1 
2.0 
1.8 

1.9 
2.1 
1.9 
1.9 
1.9 

1.7 

1.6 
1.6 

1.7 
.8 


1.9 
2.5 
1.9 
1.9 
1.7 

1.7 
2.1 
2.1 
2.9 
3.6 

2.0 
48 
12 
IS 
16 

3.4 
4.4 
4.0 
3.6 
2.5 

2.6 
2.4 
2.3 
2.3 
2.6 

2.4 
2.5 
2.4 
2.4 
2.4 
2.6 


2.7 
2.8 

20 

17 
4.3 

3.8 
3.7 
3.6 
3.0 
' 3.1 

3.0 
2.9 
3.1 
3.1 
3.1 

3.2 
2.8 
2.6 
2.7 
3.1 

2.9 
2.5 
2.3 
2.4 
2.4 

2.5 

2.4 
2.5 
2.6 
2.4 


2.5 
3.4 
2.5 
2.5 
2.3 

2.1 
2.3 
2.3 
2.3 
2.3 

2.3 
2.1 
2.1 
2.5 
2.5 

2.2 
2.4 
2.3 
2.3 
2.1 

1.9 
1.9 
1.9 
1.9 
1.9 

1.9 
1.9 
2.1 
2.1 
1.9 
1.9 


2.1 
1.9 
2.1 
1.9 
1.7 

1.7 
1.9 
2.1 
2.1 
1.9 

1.9 
4.1 
2.9 
2.1 
1.9 

1.9 
2.3 
2.5 
2.2 
2.1 

2.1 
1.9 
2.1 
2.1 
2.1 

2.1 
2.0 
2.0 
1.9 
2.0 
2.1 


2.3 
3.4 
2.1 
2.1 
1.7 

1.8 
1.7 
1.6 
1.6 
1.6 

1.6 
1.6 
1.7 
1.7 

1.7 

1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.7 
1.9 
1.7 
1.7 

1.6 
1.6 
1.6 
1.6 
1.6 


1.6 
1.6 
1.7 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.5 
1.7 
1.8 
1.7 

1.6 
1.6 
1.7 
1.6 
1.4 
1.4 


1.6 
1.6 
1.6 
1.6 
1.6 

1.4 
1.4 
1.7 
1.3 
1.6 

1.6 
1.5 
1.6 
1.5 
1.4 

1.6 
1.6 
1.6 
1.7 
2.3 

2.3 
2.3 
1.9 
1.7 
2.1 

4.8 
1.9 
1.7 
1.6 
1.9 


2.5 


2 . . .. 




2.1 


3 




2.5 


4 




27 


5 




26 


6 




9.2 


7 




23 


8 




13 


9 




8.1 


10 . . .. 




6.5 


11 




5.4 


12 




4.8 


13 




4.4 


14 . . .. 


1.1 
1.1 

19 
1.6 
1.4 

16 
7.6 

15 
2.9 
2.7 
2.5 
2.1 

2.6 
1.9 
1.9 
2.2 
2.2 
3.2 


3.7 


15 


3.6 


16 


3.1 


17 


3.6 


18 


4.1 


19 


4.1 


20 


4.0 




3.7 


22 


3.6 


23 


3.4 


24 


3.1 


25 


3.1 


26 


2.8 


27 


3.1 


28 


3.1 


29 


3.1 


30 


3.1 


31 


3.1 







Note. — No record January 1-13. 
Monthly discharge of Makawao Stream in Kailua Valley, near Kailua, Oahu, for 1913. 



Month. 



January 14-31 

±i'ebruary 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The period . 



Discharge in second-feet. 



Maximum. Minimum. Mean 



19 

14 

14 
6.1 

48 

20 
3.4 
4.1 
3.4 
1.8 
4.8 

27 



1.0 
.8 
1.7 
2.3 
1.9 
1.9 
1.6 
1.4 
1.3 
2.1 



4.83 
5.14 
3.00 
2.29 
5.16 
3.95 
2.21 
2.12 
1.76 
1.60 
1.80 
6.32 



Run-ofl 
(total in 
acre-feet). 



172 
285 
184 
136 
317 
235 
136 
130 
105 
98 
107 
389 



2,290 



Accu- 
racy. 



ISLAND OF OAHU. 



91 



KAIMI STEEAM IN KAILUA VALLEY, NEAR KAILUA, OAHU. 

Location. — At highway bridge on Waimanalo-Honolulu government road, about 12^ 

miles east of Honolulu. 
Records available. — November 12, 1912, to December 31, 1913. 
Gage. — Vertical staff, read twice daily. Datum raised 1.00 foot April 10, 1913; that 

is, 1.50 feet gage height previous to April 10 equals 0.50 foot gage heights after 

that date. 
Control. — Fairly permanent. 
Discharge measurements. — During low water, made by wading; during floods, 

from bridge. 
Diversions. — Headwaters diverted by Makawao ditch. 
Accuracy. — Records poor. 
Cooperation. — Maintained in cooperation with the Kaneohe Ranch Co. 

Discharge measurements of Kaimi Stream in Kailua Valley, near Kailua, Oahu, in 1913. 



Date. 


Hydrograpber. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Apr. 11 
June 4 


G. K. Larrison 


Feet. 
0.75 
1.08 


Sec.-ft. 
1.12 
5.55 


Sept. 9 


J. C. Dort 


Feet. 
0.82 


Sec.-ft. 
I.(i7 


do 







Daily discharge, in second-feet, of Kaimi Stream in Kailua Valley, near Kailua, Oahu, for 

1912-13. 



Day. 


Nov. 


Dec. 


Day. 


Nov. 


Dec. 


Day. 


Nov. 


Dec. 


1.. 


1912. 




18 
1.7 

21 
4.3 
4.0 

1.9 
2.4 
2.5 
2.5 
2.6 


11.. 
12. 
13. 
14. 
15. 

16. 
17. 
18. 
19. 
20. 


1912. 




1.5 

.8 

.8 

.8 

2.4 

2.5 
2.6 
2.5 
3.4 
2.5 


21. 

22. 
23. 
24. 
25. 

26. 
27. 
28. 
29. 
30. 
31. 


1912. 


1.5 
1.6 
1.3 
1.1 
1.2 

1.1 

1.6 
2.8 
2.6 
1.9 


2.6 


2 






1.0 
1.0 
1.0 

1.8 

1.0 
1.0 
1.0 

1.1 

1.0 




2 5 


3 








2 4 


4 








2 6 


5 








2 6 


6 








2 6 


7 








2.6 


8 








2 


9 








2 


10 








2.0 












2.4 











92 



WATER EESOURCES OP HAWAII, 1913. 



Daily discharge, in second-feet, of Kaimi Stream in Kailua Valley, near Kailua, Oahu, 

for 1912-13— Contmued. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1913. 
1 




2.0 
2.0 
1.7 
1.7 
3.2 

10 
8.4 
3.4 
2.4 
1.5 

.9 
1.2 

.7 
1.4 
2.6 

12 

7.0 
5.0 
3.8 
3.8 

5.0 
3.8 
3.5 
2.6 
5.0 

4.8 
3.8 
3.2 


2.9 
2.8 
2.4 
2.4 
2.8 

2.4 
1.9 
1.6 
1.4 
2.4 

2.4 
1.7 
1.6 
1.4 
.9 

.8 
14 
5.0 
3.8 

2.8 

2.2 
1.4 
.9 
1.7 
1.2 

. 1.5 
3.8 
3.5 
2.4 
2.0 
1.6 


1.4 
1.4 

1.4 
1.4 
1.7 

2.2 
1.7 
1.2 
.9 
1.0 

1.2 
1.7 
3.8 
1.2 
1.2 

4.8 
1.3 
1.1 
.9 
1.1 

.9 

.9 

1.2 

1.2 

1.0 

1.4 
1.4 
1.4 
1.2 
1.1 


1.2 
2.2 
1.3 
1.2 
1.5 

1.2 
1.4 

15 

16 

14 

1.4 
26 
10 
18 
19 

3.5 

5.0 
4.1 
3.8 
3.6 

1.9 
1.7 
1.7 
1.7 
1.6 

1.4 
1.4 
1.5 
1.4 
1.4 
1.4 


1.5 
1.5 
12 
9.6 
3.6 

4.8 
4.1 
3.6 
2.4 
2.5 

2.8 
2.9 
4.0 
4.1 
4.5 

4.1 
2.5 
1.9 
2.0 
7.6 

2.2 
2.2 
1.9 
1.6 
1.6 

1.7 
1.7 
1.7 
1.9 

1.8 


1.9 
2.4 
1.7 
1.8 
1.8 

1.7 
1.5 
1.7 
1.7 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.6 
1.5 
1.5 
1.4 

1.5 
1.4 
1.4 
1.4 
1.4 

1.4 
1.2 
1.5 
1.5 
1.5 
1.5 


1.6 
1.5 
1.5 
1.5 
1.5 

1.4 
1.4 
1.5 
1.4 
1.5 

1.4 
2.9 
1.9 
1.4 
1.4 

1.5 
2.2 
2.2 
1.5 
1.6 

1.5 
1.3 
1.4 
1.4 
1.4 

1.4 
1.4 
1.4 
1.4 
1.4 
1.4 


3.2 
4.3 
1.9 
1.5 
1.7 

1.6 
1.7 
1.6 
1.4 
1.5 

1.5 
1.4 
1.5 
1.6 
1.5 

1.4 
1.4 
1.4 
1.7 
1.7 

1.7 
1.7 
1.9 
1.5 
1.9 

1.6 
1.6 
1.2 
1.3 
1.2 


1.4 
1.4 
1.4 
1.4 
1.4 

1.4 
1.5 
1.5 
1.4 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.4 
1.5 
1.4 
1-4 

1.5 
1.5 
1.5 
1.5 
1.5 

1.4 
1.4 
1.5 
1.5 
1.4 
1.4 


1.4 
1.5 
1.5 
15 
1.5 

1.4 
1.5 
2.9 
2.4 
1.7 

1.7 
1.7 
1.7 
1.5 
1.5 

1.6 
1.7 
1.7 
2.2 
3.2 

3.2 
3.4 
2.9 
2.2 
2.9 

9.0 
2.4 
2.5 
2.3 
2.4 


2 9 


2 




2 5 


3 




2 6 


4 




23 


5 




24 


6 




15 


7 




25 


8 




13 


9 




7 8 







5.5 


11 




5 2 


12 




4.1 


13 




4 


14 


0.8 
.8 

10 
1.2 
1.2 

10 
2.6 

2.6 
2.6 
2.1 
2.6 
2.4 

3.4 
2.9 
2.6 
2.8 
2.6 
3.4 


3 6 


15 


3.5 


16 


3 2 


17 


4 3 


18 


5 2 




5 2 


20 


5.2 


21 


5 2 


22. . . .. 


4 8 


23 


4 5 


24 


4.5 


25. - . 


4 3 


26 


4.1 


27 


4 


28 


4.1 


29 


3.8 


30 


4 




4.1 







Note.— No record Jan. 1-13, 1913. 
Monthly discharge of Kaimi Stream in Kailua Valley, near Kailua, Oahu, for 1913. 



Month. 


Discharge in second-feet. 


Run-off 
(total in 
acre-feet). 


Accu- 


Maximum. 


Minimum. 


Mean. 


racy. 


January 14-31 


10 

12 

14 
4.8 

26 

12 
2.4 
2.9 
4.3 
1.5 
9.0 

25 


0.8 

.7 

.8 

.9 

1.2 

1.6 

1.2 

1.3 

1.2 

1.4 

1.4 

2.5 


3.15 

3.80 
2.57 
1.48 
5.37 
3.34 
1.56 
1.55 
1.70 
1.45 
2.30 
6.85 


112 
211 
158 

88.1 
330 
199 

95.9 

95.3 
101 

89.2 
137 
421 


C. 


February 


C. 


March 


c. 


April 


c. 


May 


c. 


June 


c. 


July 


c. 


August 


c. 


September 


c. 


October 


c. 


November 


c. 


December 


c. 






The period 








2,040 















ISLAND OF OAHU. 



93 



KAMAKALEPO STKEAM IN KAILUA VALLEY, NEAR KAILUA, OAHU. 

Location. — ^At highway bridge on Waimanalo-Honolulu govemment road, and about 

3 J miles from Waimanalo. 
Records available. — November 12 to December 3, 1912; April 9 to December 31, 

1913. 
Gage. — Vertical staff bolted to left abutment of bridge, installed April 10, 1913, to 

replace original gage washed out December 3, 1912; new datum. 
Control. — Shifting. 

Discharge measurements. — Made by wading or from highway bridge. 
Diversions. — None above station. 
Accuracy. — Records good. 
Cooperation. — Station maintained in cooperation with Kaneohe Ranch Co. 

Discharge measurements of Kamahalefo Stream in Kailua Valley, near Kailua, Oahu, 

in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Apr. 11 


G. K. Larrison 


Feet. 
1.29 
1.50 


Sec.-ft. 
1.33 
4.91 


Sept. 9 
Dec. 10 


J. C. Dort 


Feet. 
1.30 
1.60 


Sec.-ft. 
1.74 


.do 


G.R.White 


7.35 









Daily discharge, in second-feet, of KamaJsalepo Stream in Kailua Valley, near Kailua, 

Oahu, for 1913. 



Day. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dee. 


1 




1.3 
2.1 

1.4 
1.5 
1.5 

1.2 
1.5 

12 

16 
6.1 

2.2 
36 
18 
18 
16 

2.4 
4.3 
3.3 
3.3 
2.9 

2.8 
2.6 
2.8 
2.6 
2.5 

2.2 
1.9 
2.0 
2.0 
2.0 
1.9 


1.7 
1.9 

17 

19 
2.4 

2.6 
2.8 
2.5 
3.1 
3.3 

3.1 
3.1 
3.1 
2.9 
2.9 

3.3 
2.9 
2.8 
2.9 
9.5 

3.1 
2.6 
2.5 
2.6 
2.4 

2.5 
2.4 
2.4 
2.5 
2.4 


2.4 
3.9 
2.4 
1.9 
1.7 

1.7 
1.6 
1.6 
1.9 
1.6 

1.5 
1.6 
1.6 
1.9 
2.1 

1.7 
1.7 
1.9 
2.1 
1.6 

1.6 
1.5 
1.4 
1.3 
1.4 

1.4 
1.4 
1.5 
1.5 
1.5 
1.6 


2.1 
2.0 
1.9 
1.9 
1.9 

1.6 
1.9 
1.6 
1.4 
1.5 

1.6 
2.4 
1.9 
1.3 
1.4 

1.6 
2.2 
2.4 
1.6 
1.6 

1.6 
1.5 
1.5 
1.6 
1.4 

1.6 
1.6 
1.4 
1.6 
1.4 
1.4 


2.6 
6.3 
2.2 
1.6 
1.6 

1.6 
1.4 
1.6 
1.5 
1.5 

1.4 
1.4 
1.4 
1.6 
1.6 

1.4 
1.3 
1.2 
1.6 
1.6 

1.4 
1.5 
1.7 
1.3 
1.6 

1.5 
1.4 
1.0 
1.1 
1.1 


0.9 

.8 
.7 

.7 
.7 

.7 
.8 
.7 
.6 
.8 

.9 

.7 
.7 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 

.7 
.8 
.9 

.6 
.6 
.6 
.6 
.6 
.6 


0.5 
.6 
.5 
.5 
.5 

.5 

.5 

1.4 

1.1 

.6 

.7 
.7 
.7 
.7 
.8 

.9 

.9 

1.2 

1.2 

2.0 

1.2 
1.2 
1.2 
1.6 
4.1 

8.9 
4.5 
3.7 
2.4 
3.3 


3 7 


2 




3.1 


3 




4 3 


4 




12 


5 




13 


6 




19 


7 




26 


8 




13 


9 


1.6 
1.4 

1.5 
2.1 
4.5 
1.5 
1.7 

2.2 
2.1 
2.0 
1.6 
1.7 

1.4 
1.4 
1.7 
1.6 
1.7 

1.5 
1.5 
1.5 
1.5 
1.4 


7.8 


10 


5.4 


11 


3.3 


12 


2.8 


13 


2.4 


14 


1.9 


15 


1.3 


16 


1 2 


17 


2.1 


18 


2.9 


19 


2.6 


20 


2.4 


21 


2.4 


22 


2.2 


23 


2.1 


24 


2.1 


25 


1.9 


26 


1.6 


27 


1.6 


28 


1.6 


29 


1.5 


30 


1.5 


31 


1.6 









94 WATEK EESOUECES OF HAWAII, 1913. 

Monthly discharge of Kamahalepo Stream in Kailua Valley, near Kailua, Oahu,for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



April 9-30. 



June 

July 

August 

September. 

October 

November. 
December.. 



The period . 



4.5 

36 

19 
3.9 
2.4 
6.3 
.9 
8.9 

26 



1.4 
1.2 
1.7 
1.3 
1.3 
1.0 
.6 
.5 
1.2 



1.78 
5.69 
3.94 
1.76 
1.69 
1.67 
.68 
1.62 
4.85 



77.6 

350 

234 

108 

104 
99.4 
41.8 
96.4 

298 



1,410 



POHAKEA STREAM IN KAILUA VALLEY, NEAR KAILUA, OAHU. 

Location. — One-half mile above highway bridge on the Waimanalo road. 

Records available. — November 12, 1912, to December 31, 1913. 

Gage. — Vertical staff, read twice daily; datum changed November 24, when 1-foot 
sharp-crested weir was established. Gage heights from November 25 to Decem- 
ber 31 show head on crest of weir. 

Control. — Fairly permanent. 

Discharge measurements. — ^Made by wading with current-meter until November 
24, after which low-water discharge was measured by sharp-crested weir (1-foot 
crest) with end contractions. 

Diversions. — None above station; two small ditches below. 

Accuracy. — Records poor. 

Cooperation. — ^Maintained in cooperation with the Kaneohe Ranch Co. 

Discharge measurements ofPohakea Stream in Kailua Valley, near Kaihm, Oahu, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrograplier. 


Gage 
height. 


Dis- 
charge. 


Apr. 11 


G. K. Larrison 


Feet. 
1.20 
1.68 


Sec.-ft. 
0.24 
1.50 


Sept. 9 


J. C. Dort 


Feet. 
1.16 


Sec.-ft. 
0.22 


June 4 


do 













Daily discharge, in second-feet, of Pohakea Stream in Kailua Valley, near Kailua, Oahu, 

for 1912-13. 



Day. 


Nov. 


Dec. 


Day. 


Nov. 


Dec. 


Day. 


Nov. 


Dec. 


1.. 


1912. 




1.34 

.24 
1.51 
.90 

.82 

.49 
.49 
.42 
.37 
.34 


11. 
12. 
13. 
14. 
15. 

16. 
17.. 

18.. 
19.. 
20. 


1912. 




0.33 
.28 
.33 
.28 
.25 

.25 
.25 
.24 
.24 
.23 


21.. 

22.. 

23. 

24.. 

25.. 

26.. 
27.. 
28.. 
29.. 
30.. 
31.. 


1012. 


0.19 
.17 
.14 
.11 
.11 

.10 
.10 
.11 
.23 
.13 


0.25 


2 






0.08 
.08 
.06 
.12 

.08 
.08 
.06 
.07 
.07 




.24 


3 








.23 


4 








.23 


5 








.23 


6 








.23 


7 








.20 


8 








.20 


9 








.20 


10 








.20 












.20 















ISLAND OF OAHU. 



95 



Daily discharge, in second-feet, of Pohahea Stream in Kailua Valley, near Kailua, Oahu, 

for 1912-13— Continued. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jiine. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1913. 
1 




0.13 
.13 
.12 
.11 
.15 

.90 
.98 
.44 
.29 
.22 

.15 

.17 
.15 
.16 
.17 

1.20 
1.72 
1.54 
1.30 
1.04 

.90 
.76 
.49 
.35 
.52 

.35 
.33 

.29 


0.24 
.25 
.24 
.25 
.23 

.20 
.15 
.14 
.16 
.19 

.17 
.15 
.11 
.11 
.11 

.11 

1.54 

.71 

.49 

.38 

.35 
.28 
.24 
.38 
.33 

.44 
1.54 
1.40 

.87 
.54 
.34 


0.29 
.33 
.34 
.33 

.38 

.45 
.38 
.33 

.28 
.28 

.22 
.25 
.42 
.22 
.23 

.30 
.20 
.23 
.22 
.23 

.23 
.22 
.22 
.22 

.24 

.22 
.22 
.22 
.22 
.20 


0.20 
.23 
.22 
.20 
.20 

.20 
.19 
.23 
2.02 
1.44 

.35 
1.72 
1.07 

.98 
1.11 

.45 
.59 
.45 
.38 
.40 

.34 

.28 
.28 
.25 
.25 

.23 
.23 
.23 
.23 
.23 
.29 


0.28 

.29 

1.72 

2.02 

.74 

.31 

.52 
.42 
.35 
.40 

.42 
.42 
.42 
.42 
.42 

.37 
.35 
.31 
.33 
.50 

.38 
.31 
.30 
.31 
.33 

.30 

.27 
.27 
.28 
.28 


0.28 
.29 
.23 
.23 
.23 

.22 
.23 
.23 
.23 
.22 

.22 
.20 
.20 
.22 
.22 

.20 
.20 
.20 
.20 
.19 

.20 
.19 
.20 
.17 
.19 

.19 
.20 
.21 
.19 
.19 
.19 


0.20 
.19 
.17 
.20 
.20 

.18 
.18 
.19 
.19 
.19 

.17 

.28 
.19 
.18 
.17 

.22 
.23 
.25 
.19 
.19 

.21 
.17 
.19 
.17 
.17 

.17 
.20 
.20 
.20 
.20 
.20 


0.28 
.45 
.20 
.19 
.20 

.20 
.22 
.22 
.20 
.20 

.19 
.19 
.19 
.20 
.20 

.19 
. .18 
.19 
.22 
.22 

.22 
.21 
.22 
.20 
.19 

.19 
.19 
.19 
.19 
.17 


0.19 
.17 
.17 
.17 
.17 

.17 
.17 

.17 
.17 
.17 

.17 
.17 
.17 
.16 
.15 

.15 
.15 
.15 
.14 
.14 

.15 
.15 
.16 
.17 
.16 

.15 
.15 
.16 
.17 
.16 
.15 


0.15 
.15 
.15 
.14 
.12 

.12 
.15 
.25 
.22 
.16 

.15 
.15 
.15 
.14 
.14 

.14 
.14 
.15 
.19 
.28 

.23 
.28 
.23 
.22 

.47 

.66 
.49 
.39 
.30 
.37 


44 


2 




.39 


3 




72 


4 




.66 


5 




.72 


6 




.66 


7 




.66 


8 




.84 


9 




91 


10 




1 11 


11 




1 04 


12 




.94 


13 




91 


14 


0.16 
.16 

.64 
.22 
.20 
.22 
.22 

.23 
.25 
.20 
.20 
.17 

.20 
.15 
.11 
.13 
.12 
.20 


.78 


15 


63 


16 


57 


17 


.49 


18 


.44 


19 


44 


20 


.44 


21 


.39 


22 


39 


23 


.39 


24 


.34 


25 


.30 


26 


.32 


27 


.30 


28 


.30 


29 


.30 


30 


.28 


31 


25 







Note. — No record Jan. 1-13, 1913. 
Monthly discharge of Pohakea Stream in Kailua Valley, near Kailua, Oahu, for 1913. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Run-off 

(total in 
acre-feet). 



Accu- 
racy. 



January 14-31. 

February 

March 

April 



June 

July 

August 

September. 
October . . . 
November. 
December . 



0.64 

1.72 

1.54 

.45 

2.02 

2.02 

.29 

.28 

.45 

.19 

.66 

1.11 



The period . 



0.11 
.11 
.11 
.20 
.19 
.27 
.19 
.17 
.17 
.14 
.12 
.25 



0.21 
.54 
.41 
.27 
.50 
.47 
.21 
.19 
.21 
.16 
.23 
.56 



7.49 
30.0 
25.2 
16.1 
30.7 
28.0 
12.9 
11.7 
12.5 

9.84 
13.7 
34.4 

233 



96 



WATER RESOUECES OF HAWAII, 1913. 



SOUTH BRANCH OF KAHANAIKI STREAM IN KAILUA VALLEY, NEAR 

KAILUA, OAHU. 

Location. — About 300 feet above junction of two main brandies, 600 feet above bridge 

on government road, and 4 miles northwest (by road) from Waimanalo. 
Records available. — April 10 to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 
Discharge measurements. — ^Made by wading. 

Diversions. — None above station; small ditch 100 feet below station. . 
Accuracy. — Records poor. 
Cooperation. — Station maintained in cooperation with the Kaneohe Ranch Co. 

Discharge measurements of South Branch of Kahanaiki Stream in Kailua Valley, near 

Kailua, Oahu, in 1913. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Apr. 11 


G. K. Larrison 


Feet. 
0.47 

.84 


Sec.-ft. 
0.19 
1.79 


Sept. 9 


G. K. Larrison 


Feet. 
0.34 


Sec.-ff. 
0.20 


..do 











Monthly discharge of South Branch of Kahanaiki Stream in Kailua Valley, near Kailua, 

Oahu, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-ofE 
(total in 
acre-feet). 



Accu- 
racy. 



AprillO-30. 

May 

June 

July 

August 

September. . 

October 

November. . 
December . . 



0.6 
4.4 
3.4 

.5 
1.1 
2.0 

.1 
1.2 
4.3 



The period . 



0.3 
.2 
.2 
.2 
.2 
.1 
.05 
.05 
.2 



0.41 
1.01 
.70 
.27 
.54 
.32 
.07 
.30 



17.0 
62.1 
41.7 
16.6 
33.2 
19.0 
4.3 
17.9 
64.1 



266 



NORTH BRANCH OF KAHANAIKI STREAM IN KAILUA VALLEY, NEAR 

KAILUA, OAHU. 

Location. — About 400 feet above junction of two main branches, 700 feet above 
bridge on government road, and 4 miles northwest of Waimanalo. 

Records available. — April 11 to December 31, 1913. 

Gage. — Vertical staff up to November 25; November 26 to December 31, 1913, head 
read on weir crest. 

Control. — Probably permanent. 

Diversions. — Small ditch diverts about 0.3 second-foot at point about 400 feet above 
station, to left. 

Discharge measurements. — Made by current-meter imtil November 25; Novem- 
ber 25 to December 31 by 1.0-foot sharp-crested weir. 

Accuracy. — Records poor until November 25; November 26 to December 31, good. 

Cooperation. — Station maintained in cooperation with the Kaneohe Ranch Co. 



ISLAND OF OAHU. 



97 



Discharge measurements of North Branch of Kahanaihi Stream in Kailua Valley, near 

Kailua, Oahu, in WIS. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Apr. 11 


G. K. Larrison 


Feet. 
0.95 

1.28 


Sec.-ft. 
0.11 
2.76 


Sept. 9 


J. C. Dort 


Feet. 
1.05 


Sec.-ft. 
0.54 


June 4 


do 







Monthly discharge of North Branch of Kahanaihi Stream in Kailua Valley, near Kailua, 

Oahu, for 1913. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



April 9-30. 

May 

June 

July 

August 

September. 
October . . . 
November. 
December.. 



0.40 

3.00 

8.20 

.30 

.20 

1.50 

.15 

.75 

2.20 



0.01 
.05 
.10 
.03 
.04 
.05 
.07 
.07 
.45 



0.17 
.49 

1.04 
.17 
.06 
.43 
.09 
.24 

1.07 



7.42 
30.1 
61.9 
10.5 

3.69 
25.6 

5.53 
14.3 
65.8 



The period. 



225 



Note.— Apr. 9 to Aug. 31, Sept. 3-4, and Sept. 24 to Nov. 7, the Kahanaiki ditch diverted about 0.3 
second-foot from the stream above the station. Water overflowed weir Dec. 10-18; discharge estimated. 

WAIAHOLE STREAM AT MANIANIAULA, NEAR WAIKANE, OAHU. 

Location. — In upper Waiahole Valley, at boundary line of government and private 

land, 3J miles southwest of Waikane. 
Records available. — September 25, 1911, to December 31, 1913. 
Gage. — Vertical staff; read twice daily. 
Control. — Probably shifting. 
Discharge measurements. — ^Made by wading. 
Diversions. — None above gage. 

Regulation. — Flow regulated by large springs at head of Waiahole Valley. 
Accuracy. — ^Records good. 

Discharge measurements of 'Waiahole Stream at Manianiaula, near Waikane, Oahu, in 1913. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Mar. 1 


J. C. Dort 


Feet. 

0.96 
.96 
.99 

1.26 


Sec.-ft. 
23.4 
20.4 
22.3 
37.6 


Aug. 15 
Sept. 12 
Oct. 1 
Dec. 9 


G. K. Larrison 


Feet. 
1.29 
1.39 
1.30 
1.30 


Sec.-ft. 
37.2 


May 3 
June 30 


. . do 


G.R.White 


43.0 




do 


40.1 


Aug. 8 


J. C. Dort 


J. C. Dort 


39.5 









97764°— wsp 373—15- 



98 



WATER EESOUECES OF HAWAII, 1913. 



Daily discharge, in second-feet, of Waiahole Stream at Manianiaula, near Waikane, Oahu, 

for 191S. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


18 
18 
18 
18 
18 

18 
18 
18 
18 
18 

18 
18 
18 
18 
18 

19 
19 
19 
100 
22 

22 
22 
19 
19 
19 

19 
19 
19 
19 
19 
19 


19 
20 
20 
20 
20 

28 
22 
22 
22 
21 

21 
20 
20 
20 
21 

21 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
21 
21 


20 
20 
20 
20 
20 

20 
20 
20 
20 
20 

20 
20 
20 
20 
20 

20 
20 
20 
20 
20 

20 
20 
20 
21 
21 

21 
21 
21 

20 
20 
20 


20 
20 
20 
20 
20 

20 
20 
19 
19 
19 

19 
20 
21 
21 
21 

20 
20 
20 
20 
20 

20 
20 
20 
20 
20 

20 
20 
20 
20 
20 


20 
20 
20 
20 
20 

20 
20 
20 
20 
21 

20 
22 
22 
46 
23 

22 
22 
21 
21 
21 

21 
21 
21 
20 
20 

20 
21 
21 
21 
21 
21 


21 
21 
30 
27 
22 

22 
22 
.22 
22 
22 

22 
22 
24 
22 
22 

22 
22 
22 
22 
22 

22 
22 
22 
22 
22 

22 
22 
22 
22 
22 


22 
23 
22 
22 
22 

22 
22 
22 
21 
21 

21 
21 
21 
21 
21 

21 
22 
22 
22 
22 

22 
21 
21 
21 
22 

22 
22 
22 
22 
22 
22 


26 
32 
34 
35 
35 

35 
37 
37 
37 
37 

38 
39 
38 
39 
38 

41 
91 
41 
43 
43 

43 
44 
45 
46 
47 

47 
47 
47 
47 
47 
47 


47 
49 
49 
47 
46 

46 
46 
46 
46 
45 

44 
44 
44 
44 
44 

45 
45 
45 
49 
47 

47 
47 
46 
45 
45 

45 
45 

45 
45 
45 


44 
44 
44 
44 
44 

44 
43 
42 
41 
40 

39 
39 
39 
39 
39 

39 
39 
39 
39 
38 

38 
38 
39 
38 
38 

38 
37 
37 
37 
37 
37 


37 
37 
37 
37 
37 

37 
37 
38 
37 
37 

37 
37 
37 
37 
37 

37 
37 
38 
38 
38 

38 
38 
37 
37 
37 

37 
37 
37 
37 
37 


37 


2 


37 


3 


38 


4 


37 


5 


37 


6 


37 


7 


37 


8 


38 


9 


39 


10 


39 


11 


39 


12 .... 


39 


13 

14 


39 
39 


15 .... 


39 


16 


39 


17 


38 


18 

19 


38 
38 


20 


38 


21 


38 


22 


38 


23 


38 


24 

25 


38 
38 


26 


38 


27 


38 


28 


38 


29 


38 


30 


38 


31 


38 







Note. — Beginning Aug. 1, water developed in. the Waiahole Tunnel was wasted into this stream. 
Monthly discharge of Waiahole Stream at Manianiaula, near Waikane, Oahu, for 1913. 



Month. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



Discharge in second-fe^t. 



Maximum. Minimum. Mean 



100 
28 
21 
20 
46 
30 
23 
91 
49 
44 
38 
39 



100 



18 



21.4 
21.0 
20.2 
20.0 
21.6 
22.4 
21.7 
42.0 
45.8 
39.8 
37.2 
38.1 



29.3 



Run-off 
(total in 
acre-feet). 



1,320 
1,170 
1,240 
1,190 
1,330 
1,330 
1,330 
2,580 
2,730 
2,450 
2,210 
2,340 



21,200 



Accu- 
racy. 



ISLAND OP OAHU. 



99 



RIGHT BRANCH OF NORTH FORK OF KAUKONAHUA STREAM NEAR 

WAHIAWA, OAHU. 

Location. — About 8 miles northeast of Wahiawa. and 200 feet up the Right Branch 
from the intake of the Waialua Agricultural Co. tunnel, which is at the confluence 
of the Right and Left Branches or two main branches of the North Fork. 

Records available. — May 29 to December 31, 1913. 

Gage. — Stevens continuous water-stage recorder. 

Control. — Probably permanent. 

Discharge measurements. — ^Made by wading or from a footbridge about 20 feet 
above gage. 

Diversions. — None above station. 

Accuracy. — Records fair. 

Cooperation. — ^The Waialua Agricultural Co. appropriated sufficient funds to cover 
cost of equipment and installation of station. 

Discharge measurements of Right Branch of North Fork of Kaukonahua Stream, near 

Wahiawa, Oahu, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


May 30 
30 


J. C. Dort 


Feet. 
2.00 
1.78 
1.57 
1.55 
3.18 


Sec.-ft. 

10.8 
5.76 
2.89 
2.79 

92.8 


Oct. 1 
31 

Nov. 11 
20 
26 


G.R.White 


Feet. 
1.30 
1.35 
3.44 
2.49 
3.88 


Sec.-ft. 
0.54 


do 


J. C. Dort 


.98 


July 11 
Aug. 21 
Sept. 1 


do 

G K Larrison . 


do 

G.R. White 


120 
34 7 


J. C. Dort 


J. C. Dort 


190 









Daily discharge, in second-feet, of Right Branch of North Fork of Kaukonahua Stream, near 

Waihiawa, Oahu, for 1913. 



Day. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 




4.0 
3.7 
4.2 
30 
6.8 

5.0 

4.8 
4.7 
4.5 
4.0 

3.5 
3.6 

4.7 
10 
25 

5.9 
9.9 
5.9 
4.8 
4.0 

6.8 
9.1 
35 
9.1 
6.3 

5.2 
4.9 
5.0 

10 

15 


11 

36 
27 
10 

86 

9.1 

7.4 
6.8 
5.4 
4.2 

3.1 
2.9 
2.9 
2.8 
3.1 

2.3 
2.2 
2.3 
2.4 
2.0 

1.9 
1.7 
1.8 
1.8 
2.0 

2.3 
4.0 
2.8 
2.6 
3.3 
1.8 


1.4 
1.3 
1.3 
1.2 
1.2 

1.2 
1.2 
1.2 
1.4 
3.8 

1.8 
67 
2.5 
2.1 
1.7 

2.8 
8.3 
3.2 
2.2 
2.0 

2.9 
2.5 
2.2 
2.5 
1.7 

1.4 
1.4 
3.2 
3.3 
2.1 
4.4 


6.2 
3.8 
3.2 
2.2 
2.1 

2.0 
1.8 
1.6 
1.6 
1.6 

1.4 
1.4 
1.4 
1.5 
2.2 

2.1 
1.6 
1.6 
4.1 
1.8 

1.6 
1.9 

.7 
.7 
.7 

.7 
.8 
.8 
.8 
.8 


0.8 

.8 
.8 
.8 
.8 

.8 
.8 
.7 
.6 
.6 

1.1 
28 
9.6 
2.7 
1.7 

1.3 

1.2 

1.0. 

1.0 

1.3 

2.8 
3.7 
2.8 
1.8 
3.2 

3.6 
1.6 
1.3 
1.2 
1.0 
1.0 


1.1 
3.7 
3.3 
1.6 
1.4 

1.4 

4.5 
15 
34 
45 

87 
114 
72 
20 
14 

9.9 
8.1 
7.2 
16 
104 

56 
20 
15 
16 

80 

79 
46 
32 
20 
16 


8.5 


2 




7.4 


3 




40 


4 




55 


5 




21 


6 




43 


7 




27 


8 




14 


9 




11 


10 




9 1 


11 




8.0 


12 




7 4 


13 




6 8 


14 




5 7 


15 




5 4 


16 




5 


17 




5 2 


18 




5 6 


19 




5.0 


20 




3 9 


21 




3 8 


22 




3.6 


23 




3 1 


24 




2.7 


25 




2 5 


26 




2 5 


27 




2.4 


28 




2 3 


29 


9.6 
8.1 
4.4 


2.2 


30 


2 2 


31 


1.9 







Note.— No records June 21-July 10, Sept. 24-30, and Dec. 1-30 ; discharge estimated by comparison 
with records of station on Left Branch of North Fork of the Kaukonahua. 



100 



WATER RESOURCES OF HAWAII, 1913. 



Monthly discharge of Right Branch of North Forlc of Kaukonahua Stream near Wahiawa, 

Oahu, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minunum. Mean 



Run-off 

(total in 

acre-teet). 



Accu- 
racy. 



May 29-31 . 

June 

July 

August 

September. 
October . . . 
November. 
December . 



9.6 
35 
86 
67 

6.2 
28 
141 
55 



4.4 
3.5 
1.7 
1.2 
.7 
.6 
1.1 
1.9 



7.37 
8.51 
8.22 
4.40 
1.82 
2.59 
32.3 
10.4 



43.8 
506 
504 
271 
108 
159 
1,920 
640 



The period . 



4,150 



Note.— Actual maximum, Nov. 20, 10 p. m., 600 second-feet., actual minimum, Sept. 27, 29, and Oct. 11, 
0.6 second-feet. 



LEFT BRANCH OF NORTH FORK OF KAUKONAHUA STREAM NEAR 
WAHIAWA, OAHU. 

Location. — About 8 miles east by north of Wahiawa and 100 feet above the intake of 
the Waialua Agricultural Co 's tunnel, which is at the confluence of the right and 
left branches or the two main branches of the North Fork. 

Records available. — May 25 to December 31, 1913. 

Gage. — Stevens continuous water-stage recorder. 

Control. — Probably permanent. 

Diversions. — None above station. 

Discharge measurements. — Made by wading or from cable. 

Accuracy. — Records good. 

Cooperation. — The Waialua Agricultural Co. appropriated sufiicient funds to cover 
the cost of equipment and installation of station. 

Discharge measurements of Left Branch of North Fork of Kaukonahua Stream near Wahi- 
awa, Oahu, in 1913. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


May 23 
24 


J. C. Dort 


Feet. 
1.39 
1.62 
1.78 
1.40 
1.39 
1.60 
1.25 


Sec. ft. 

6.31 
14.9 
20.5 

7.26 

6.01 
12.1 

2.95 


Sept. 1 
1 

Oct. 1 
31 

Nov. 20 
20 
26 


J. C. Dort . 


Feet. 
2.08 
2.52 
1.08 
1.00 
2.70 
2.27 
3.00 


Sec. ft. 
41 6 


do 


. ...do 


94 6 


24 


do 


G. R. White 


.93 


27 


do 

do 


J. C. Dort 


.99 


July 11 


G. R White 


94 1 


Aug. 31 


do 


do 


60 2 


Sept. 1 


do 


J. C. Dort .... 


167 











ISLAND OF OAHU. 



101 



Daily discharge, in second-feet, of Left Branch of North Fork of Kaukondhua Stream near 

Wahiawa, Oahu,for 1913. 



Day. 


May. 


Juae. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 




4.6 
4.2 

4.8 
26 

7.7 

10 
9.1 
7.2 
6.2 
5.9 

7.4 
6.9 
6.2 

11 

21 

12 

30 

15 
9.1 
9.4 

12 
16 
61 
16 
11 

9.1 

8.6 
8.8 

18 

27 


20 
63 

47 
18 
15 

16 
13 
12 
9.4 

7.4 

6.4 
6.2 
5.9 
6.7 

5.7 

5.5 
4.4 
4.4 
4.4 
4.2 

4.1 
3.4 
3.4 
3.6 
6.9 

9.8 

13 

17 

12 
6.2 
4.4 


3.6 
3.3 
3.1 
3.0 

2.8 

3.0 
3.0 
2.8 
3.8 
12 

4.1 
40 
7.2 
8.3 
5.7 

7.2 
20 
8.3 
6.2 
4.8 

11 
5.9 
5.3 
5.3 

4.2 

3.9 
3.8 
4.1 
3.4 
2.8 
8.3 


13 
6.9 

7.7 
5.1 
4.2 

4.1 
3.3 
3.0 

2.8 
2.8 

2.7 
2.8 
2.5 
2.7 
3.4 

2.7 
2.3 
2.2 
11 
3.4 

2.4 
2.3 
3.9 
1.5 
1.5 

1.3 
1.2 
1.3 
1.2 
1.3 


1.3 
1.3 
1.1 
1.1 
1.1 

1.1 
1.1 

21 

33 

7.2 

4.1 
3.3 
2.7 
2.3 
2.3 

2.8 
8.3 
5.1 
3.6 
3.8 

9.8 
3.9 
2.8 
2.7 
6.6 

2.8 
2.3 
1.9 
1.8 
1.5 
1.6 


0.9 
14 
1.4 
1.4 
1.4 

1.4 
1.4 
1.2 
1.0 
1.0 

1.9 

49 

17 
4.7 
3.0 

2.3 
2.1 

1.7 
1.7 
2.3 

4.9 
6.5 
4.9 
3.2 
5.6 

137 
46 
28 
20 
20 


15 


2 




13 


3 




70 


4 




96 


5 




37 


6 




75 


7. 




47 


8 




24 


9 




19 


10 




16 


11 




14 


12 




13 


13 




12 


14 




10 


15 




9.4 


16 




8.8 


17 




9.1 






9 8 


19 




8.8 


20 




6.9 






6.6 


22 




6 4 


23 




5.5 


24 




4.8 




5.7 

5.5 
5.5 
5.3 
4.4 
7.2 
5.3 


4.4 




4 4 


27 


I:! 


28 


4.1 


29. 


3 8 




3.8 


31 


3.4 







Note.— Discharge Nov. 3-25 estimated by comparison witli records of the station on the Right Branch 
of the North Fork of the Kaukonahua. 

Monthly discharge of Left Branch of North Fork of Kaukonahua Stream near Wahiawa, 

Oahu, for 1913. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



May 24-31.. 

June 

July 

August 

September. 
October. . . 
November. , 
December., 



7.2 
61 
63 
40 
13 
33 
137 
96 



4.4 
4.2 
3.4 
2.8 
1.2 
1.1 



5.56 
13.4 
11.5 

6.78 
3.54 
4.69 
12.9 

18.2 



The period. 



77.1 
797 
707 
417 
211 
288 
768 
1,120 



4,390 



Note. — Actual maximum for year, Nov. 20, 10 p. m., 750 second-feet; actual miaimum for year, Nov. 
1, 0.9 second-feet. 



102 



WATEE RESOURCES OP HAWAII, 1913. 



SOUTH FORK OF KAUKONAHUA STREAM NEAR WAHIAWA, OAHU. 

Location. — About 10 miles east of Wahiawa by main road to United States Army 

reservoir and trail up ditch bank to about one-eighth mile above the United States 

Army ditch intake. 
Records available. — June 18 to December 31, 1913. 
Gage. — Stevens continuous water-stage recorder. 
Control. — Probably permanent. 

Discharge measurements. — Made by wading or from cable just above gage house. 
Diversions. — None above station. Small ditch diverts water one-eighth mile below 

station for the supply of Schofield Barracks. 
Accuracy. — Records fair. 
Cooperation. — The Quartermaster Department, United States Army, appropriated 

sufficient funds to cover the cost of equipment and installation of this station. 

Discharge measurements of South Fork of Kauhonahua Stream near Wahiawa, Oahu, in 

1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


June 18 


J. C. Dort 


Feet. 
1.66 
1.63 
1.47 
1.46 


Sec. -ft. 
4.27 
5.42 
1.41 
1.14 


Oct. 9 
Nov. 11 
Nov. 21 
Dec. 17 


J. C. Dort 


Feet. 
1.55 
2.21 
2.00 
1.58 


Sec.-ft. 
3.08 


July 9 
Sept. 13 
Sept. 24 


do 

G. R. White 


G. R. White 


39.2 


do 

do 


29.6 


J. C. Dort 


6.66 



Daily discharge, in second-feet, of South Forh of Kauhonahua Stream near Wahiawa, Oahu, 

for 1913. 



Day. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


Day. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov, 


Dec. 


1 




27 
43 
28 
11 
15 

11 

7.7 
8.0 
5.8 
5.1 

4.8 
4.8 
4.8 
4.8 
■4.8 


1.1 
.9 

.7 
.7 
.7 

.8 
1.2 
1.2 

.9 
1.8 

2.2 
35 
7.7 
3.0 
3.2 


2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.2 

2.5 
3.0 
2.0 
1.8 
2.7 


1.2 

.8 
.8 
.7 
.7 

.9 
2.2 

18 
6.4 
2.0 

1.4 
1.1 
2.0 
3.5 
1.6 


0.6 
.7 
9.6 
2.2 
1.1 

1.0 
1.1 
13 

88 
37 

28 
66 
35 
13 

8.8 


63 
57 
51 
45 
39 

33 
30 
26 

22 
20 

17 
15 
13 
11 

9.4 


16.... 




4.8 
4.5 
4.3 
4.0 

3.8 

3.2 
3.0 
2.7 
2.5 
5.4 

4.3 
7.4 
12 
6.4 
2.7 
2.0 


3.8 
3.8 
4.0 
4.3 
4.5 

2.2 
3.0 
12 
2.2 
1.8 

2.0 
2.2 
1.4 
2.7 
2.2 
2.0 


2.0 
4.8 
16 
4.5 
3.2 

2.5 
7.4 
3.8 
1.8 
2.2 

1.2 
1.0 
.9 
.9 
1.0 


1.2 
1.1 
1.2 
1.1 
.7 

.7 
.7 
.7 
1.1 
4.8 

1.1 

.8 
.8 
1.2 
.7 

.7 


7.7 
7.0 
7.4 
14 
111 

43 
9.8 
41 
119 
29 

92 

86 
80 

74 
68 


7.8 


2 




17 




6.7 


3 




18 




5.9 


4 




19 . 




5.2 


5 




20.... 

21.... 
22.... 
23.... 
24.... 
25.... 

26.... 
27.... 
28.... 
29.... 
30.... 
31 


23 

9.6 
7.0 
6.1 
5.4 
5.4 

5.1 

11 

17 
7.4 
9.6 


4.9 


6 




4.9 


7.... 




4.3 


8 




4.0 


9.... 




4.0 


10 




3.8 


11 




3.6 


12 




3.3 


13 




3.1 


14.... 
15.... 




2.9 
2.7 






2.5 











Note. — Discharge estimated Nov. 27 to Dec. 5, and Dec. 18. 
Monthly discharge of South Forh of Kauhonahua Stream near Wahiawa, Oahu, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean. 



Run-ofl 
(total in 
acre-feet). 



Accu- 
racy. 



June 20-30. 

July 

August 

September . 

October 

November. 
December . . 



23 


5.1 


43 


2.0 


35 


.7 


16 


.9 


18 


.7 


119 


.6 


63 


2.5 



8.34 
3.72 
2.85 
2.00 
36.5 
16.8 



The period. 



211 
513 
229 
170 
123 
2,170 
1,030 

4,450 



ISLAND OF OAHU. 



103 



MISCELLANEOUS MEASUREMENTS. 



Measurements of streams on the island of Oahu at points other 
than regular gaging stations are listed below: 

Miscellaneoiis discharge measurements on Oahu in 1913. 



Date. 



Stream. 



Locality. 



height. 



Dis- 
charge. 



Mar. 27 

Do.... 

Do..., 

Mar. 28 

Apr. 4 



Do. 
Do. 



Do... 
Apr. H 

Do!."! 
May 15 



Do... 

Do.... 

May 30 

Do.... 



Do.... 

Do.... 
June 2 
June 3 
June 4 
July 1 

Do.... 

Do.... 
July 2 

Do.... 

Do.... 

Do.... 
Aug. 8 
Aug. 15 
Sept. 9 
Sept. 12 
Oct. 22 
Oct. 31 
Dec. 5 
Jan. 25 
Feb. 26 
Mar. 29 
Apr. 13 
Jime 24 
Feb. 26 
Mar. 29 
Apr. 13 
Feb. 1 
Aug. 8 
Apr. 2 
Apr. 14 
May 23 
Sept. 12 
Nov. 10 



Waialua artesian well, in flume 

Waialua artesian weU, ditch 

Hauula artesian weU 

Lung Do Y artesian well 

Drain from Young Hotel artesian weU. 
Alakea Street flood sewer , 



.do. 
.do. 



do 

Main Kahanaiki 

Kahanaiki ditch a 

Wong Leong's ditch 6 . 
Paumalu Gulch 



do 

Paumalu Stream. 
Walomao Stream. 
do 



do 

do 

Kalihi Sti'eam 

Artesian well, on Bishop estate land. 

Kahanaiki ditch a 

Branch Kahana Stream 

Main Branch Kahana Stream 

Branch Kahana Stream 

Waihee Stream c , 

Walanu Stream c 

Uwau Stream d 

Waiawa Stream 

Portal of tunnel 

do 

Wong Leong's ditch b 

Portal of tunnel 

do 

do 

Keaahala Spring « 

Pukele Stream / 

do 

do 

do 

do 

Waioma Stream / 

do 

do 

Waiahole Stream 

....do 

Lulumaha Stream g 

do 

....do 

....do 

....do 



Waialua 

do 

Hauula 

Honolulu 

do 

Alakea and Merchant Streets, 
Honolulu. 

Alakea and Queen Streets, 
Honolulu. 

Opposite Hawaii Electric Co. 
plant, Honolulu. 

100 feet above outlet jHonolulu. 

Kailua Valley 

do 

do 

Three-fourths mile below in- 
take, Pupukea. 

Above intake, Pupukea 

Below Pupukeapipe, Pupukea, 

Above outlet of Kaau Crater.. 

300 feet below outlet, Kaau 
Crater. 

Top of lower falls 

900 feet elevation 

Upper Kalihi Valley 

Below Kamehameha School.. . 

Kailua VaUeyJ 

Weir No. 12 Kahana Valley . . . 

Weir No. 6 Kahana Valley 

Weir No. 2 Kahana Valley 

Upper Waiahole Valley 

Weir No. 2 Waianu Valley 

At weir, Waianu VaUey 

Above intake, Waiawa Valley. 

Waiahole 

do 

Kailua Valley 

Waiahole 

do 

do 

Kaneohe 

Below Mahoe Springs, Palolo . . 

do 

....do 

....do 

....do 

Above Pukele, Palolo 

....do 

....do 

At Waiahole, near Waikane. . . 

....do 

Near Honolulu 

....do 

....do 

....do 

....do 



Feet. 



0.92 

.82 

1.92 



.60 



1.94 
2.10 
1.49 
2.20 
1.96 
2.03 



.62 

.66 

.64 

L58 

.74 

1.10 

1.12 

1.80 

1.08 



1.60 
1.66 
1.61 
1.49 
1.71 



Sec.-ft. 
0.79 
1.29 
1.02 
1.28 
.60 
.75 

.59 

4.25 

5.36 
1.00 

.31 
4.66 

.13 

.11 

.08 
.05 
.27 

.29 
.41 

2.36 
1.88 
.27 
.74 
5.91 
.35 
3.74 
3.72 
.48 
2.80 
25.5 
26.0 
4.22 
31.7 
25.8 
22.4 
.48 
.50 
.54 
.62 
19.2 
1.01 
.42 
.62 
17.8 
28.8 
43.4 
.51 
.62 
.70 
.60 
1.78 



o Diverts from Kahanaiki Stream. 
b Diverts from Kailua Stream. 
c Tributary to Waiahole Stream. 
<* Tributary to Waianu Stream. 



c Tributary to Kaneohe Stream. 
/ Tributary to Palolo Stream. 
g Tributary to Nuuanu Stream. 



104 WATER EESOUKGES OP HAWAII, 1913. 

ISLAND OF MAUI. 
lAO STREAM NEAR WAILUKU, MAUI. 

Location. — About 3 miles west of Wailuku and one-fourth mile below the forks of the 

stream. 
Records available. — ^May 7, 1910, to December 31, 1913. 
Gage. — Friez water-stage recorder. 
Control. — Fairly permanent. 

Discharge measurements. — ^Made by wading or from cable. 
Diversions. — None above station. 
Accviracy. — Records good. 

Discharge measurements of lao Stream near Wailuku, Maui, in 1913. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Mar. 17 


C.T.Bailey 


Feet. 
2.86 
4.08 


Sec.-ft. 
33.0 
213 


Dec. 4 


C. T. Bailey 


Feet. 
5.25 


See.-ft. 
758 


Aug. 12 


Bailey and Christiansen 







Daily discharge, in second-feet, of lao Stream near Wailuku, Maui, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 




18 
12 
12 
16 
54 

85 
131 
141 
47 
39 

33 

27 
26 
26 
74 

65 

60 

244 

236 

141 

105 
76 
65 
82 

141 

82 
69 
64 


64 
65 
65 
60 
61 

62 
66 
65 
64 
59 

56 
52 
51 
70 
108 

132 
54 
29 
26 
26 

28 
79 
28 
25 
34 

25 
25 
40 
22 
27 
47 


29 
25 
22 
22 


'"'76' 


59 
65 
60 
56 
64 

66 
60 
49 
90 
69 

61 
105 

72 
100 
122 

92 
75 
67 
65 
66 

66 

78 
82 
76 
83 

79 
254 
155 

79 
150 


92 
93 

72 
54 
118 

58 
44 
31 
31 
31 

31 

54 
42 
37 
34 

32 
32 
30 

75 
78 

45 
37 
49 
47 
40 

35 
24 
25 
23 
22 
21 


22 
22 
25 
23 
28 

28 
30 
27 
51 
32 

212 
170 

75 
64 
82 

183 
93 
65 
54 
43 

60 
45 
42 
34 
27 

34 
27 
44 
30 
19 
13 


35 
56 
40 
28 
26 

26 
30 
30 
26 
30 

25 
27 
27 
22 
22 

25 
60 
66 
36 
30 

33 
30 
30 
28 
27 

27 
27 
21 
19 
19 


18 
15 
16 
19 
40 

40 
43 
36 
26 
25 

. 25 
11 
71 
30 

18 

13 
11 
11 
10 
10 

10 
10 
9 
9 
9 

10 
10 

8 
7 
6 
6 


12 
92 
138 
66 
35 

25 

54 

341 

530 

173 

159 
146 
108 
69 
55 

111 
104 
183 
121 
111 

108 
66 
49 
126 
159 

141 
54 
44 

183 
64 


54 


2 




46 


3 




164 


4 


20 
19 

18 
18 
18 
20 
20 

19 
40 
145 

157 
124 

44 
32 
26 


553 


5 


270 


6 






254 


7 






148 


8 






108 


9 






83 


10 






66 


11 


""33s' 
308 
326 

216 
181 
122 
72 
66 

76 
71 


38 
134 
124 
290 
177 

119 
159 
132 
138 
94 

82 
74 
79 
79 
69 

96 

85 
85 
69 
65 
60 


59 


12 


52 


13 


51 


14 


89 


15 


69 


16 


54 


17 


66 


18 


93 


19 


60 


20 




54 


21 




58 


22 




56 


23 




58 


24 




44 


25 




49 


26 




54 


27 




51 


28 




65 


29 




54 


30 






52 


31 


22 




51 







KOTE.— No record Jan. 1-3, 19-30; Apr. 5-12, 23-30; May 1, 3-10. 



ISLAN^D OP MAUI. 105 

Monthly discharge of lao Stream near Wailuku, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 4-18, 31 . 

February 

March 

April 1-4, 13-22 . 

May 2, 11-31 

June 

July 

August 

September 

October 

November 

December 



157 
244 
132 
338 
290 
254 
118 
212 
66 
71 
530 
553 



The period. 



46.3 
77.5 
52.1 

134 

106 
85.2 
46.3 
55.0 
30.9 
18.8 

121 
95.9 



1,470 
4,300 
3,200 
3,720 
4,620 
5,070 
2,850 
3,380 
1,840 
1,160 
7,200 
5,900 



44,700 



MANIANIA DITCH NEAR WAILUKU, MAUI. 

Location. — About 2\ miles west of Wailuku and 800 feet below intake. 

Records available. — October 18, 1910, to September 30, 1913. 

Gage. — Vertical staff. 

Control. — Probably permanent. 

Discharge measurements. — Made from plank footbridge above 50 feet above gage. 

Accuracy. — Records fair. 

Discharge measurements of Maniania ditch near Wailuku, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge. 


Mar. 17 


Feet. 
1.07 

.74 


Sec.-ft. 
22.8 
15.8 


May 1 


Feet. 
1.56 


Sec.-ft. 
33.2 


Apr. 8 











Monthly discharge of Maniania ditch near Wailuku, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Miaimum. Mean. 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January... 
February. . 

March 

April 

May , 

June 

July , 

August 

September. 



14 
6.0 
15 
17 
10 
22 
23 
20 
17 



19.5 
13.5 
21.7 
24.1 
23.9 
26.6 
27.5 
26.5 
22.8 



The period . 



1,200 
750 
1,330 
1,430 
1,470 
1,580 
1,690 
1,630 
1,360 

12,400 



106 



WATER EESOUKCES OP HAWAII^ 1913. 



SOUTH WAIEHU STREAM NEAR WAILUKU, MAUI. 

Location. — About 3 miles west of Wailuku and 300 feet above South Waiehu ditch 

intake. 
Records available. — March 19 to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Shifting . 

Discharge measurements. — ^Made from footbridge or by wading. 
Diversions. — One small taro ditch, carrying about 0.2 second-foot at ordinary stages, 

diverts water above the gage. 
Accuracy. — Records for March, July, August, and October, good; for other months, 

poor. 

Discharge measurements of South Waiehu Stream, near Wailuhu, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge. 


Mar. 18 


Feet. 
0.58 
.76 


Sec.-ft. 
4.91 
8.01 


June 28 


Feet. 
0.54 
.53 


Sec.-ft. 
3.02 


Mar. 21 


July 31 


2.73 









Daily discharge, in second-feet, of South Waiehu Stream near Wailuhu, Maui, for 1913. 



Day. 



Mar. 



Apr. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



2 




3 





4 




5 




6 




7 




8 




9 




10 




11 




12 




13 




14 




15 




16 




17 




18 




19 


3.8 


20 


3.8 


21 


3.8 


22 


8.8 


23 


3.8 


24 


3.8 


25 


3.8 


26 . .. 


3.8 


27 


3.8 


28 


6.0 


29 


3.8 


30 


5.1 


31 


3.8 



3.8 
4.2 
3.8 
4.2 
3.8 

3.8 
3.8 
3.8 
3.8 
3.8 

30 
14 
49 
5.6 
17 

29 

58 

38 
4.4 
3.8 



4.4 
3.8 
3.8 

3.8 
3.8 
3.8 
3.8 
3.8 



3.8 
4.4 
3.8 
3.8 
3.8 

3.8 
3.8 
3.8 
3.8 
3.8 

3.8 
116 
128 

92 

17 

4.7 
4.2 
3.8 
3.8 
3.8 

3.8 
3.8 
3.8 
3.8 
3.8 

3.8 
6.8 
10 
5.6 
3.8 
3.8 



3.8 
3.8 
4.2 
3.8 
3.8 

3.8 
3.8 
3.8 
3.8 
4.7 

3.8 
4.7 
4.7 
3.8 
3.8 

3.8 
3.8 
3.8 
3.8 
3.8 

3.8 
3.8 
3.8 
3.8 
3.8 

3.8 
62 
3.8 
3.8 

4.7 



2.4 
2.8 
3.0 
3.0 
3.0 

3.0 

2.8 
2.8 
3.0 
2.8 

5.1 
4.7 
4.2 
3.8 
3.8 

3.4 
3.0 
2.6 
6.0 
5.1 

4.7 
4.7 
4.7 
4.4 
3.4 

2.6 
3.4 
6.0 
3.6 

4.7 
5.4 



3.4 
6.0 

7.4 
3.4 

4.7 

4.9 
5.4 
4.7 
5.6 

5.8 

7.7 
12 
3.4 
5.6 
5.4 

14 
4.9 
3.8 
3.8 
3.8 

5.1 
3.8 
4.0 
4.0 
4.0 

4.0 
5.1 

4.7 
4.7 
4.0 
10 



3.6 
92 
6.5 
3.6 
3.6 

3.8 
20 
6.0 
3.8 
3.8 

4.7 
3.8 
4.4 
3.8 
3.8 

5.1 
11 
11 

5.1 

4.2 

4.2 
3.4 
4.2 
3.8 
4.7 

4.7 
4.7 
4.9 
4.9 
4.9 



6.3 
6.3 
7.1 

4.4 
5.6 



4.7 
4.7 
4.7 

4.7 

4.7 
4.7 
4.7 
4.7 
4.7 

5.1 

4.2 
4.7 
5.6 
6.0 

6.5 
4.0 
6.5 
3.8 
4.0 



4.0 
4.0 



5.6 
8.8 
58 
5.1 
4.0 

4.0 
76 
137 

58 



5.1 
5.1 

5.1 

4.7 
4.7 

4.7 
4.9 

42 

48 
8.2 

6.3 

4.9 
5.1 
6.8 
5.1 

6.0 

4.4 
4.2 
4.2 
4.7 



7.1 

7.7 
76 
177 
185 

143 
44 
8.0 
5.6 
4.9 

5.1 
5.1 
4.2 

78 
10 

9.4 
9.1 
6.5 
6.8 
6.0 

6.3 

4.9 

4.7 
4.7 
4.7 

4.7 
4.7 
4.7 
4.7 
4.7 
5.1 



ISLAND OF MAUI. 107 

Monthly discharge of South Waiehu Stream near Wailuku, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. 



Run-ofl 

(total in 

acre-feet). 



Accu- 
racy. 



March 19-31. 

April 

May 

June 

July 

August 

September... 

October 

November. . . 
December . . . 



58 

128 

62 

6 

14 

92 

8. 

137 

185 



3.8 
3.8 
3.8 
3.8 
2.4 
3.4 
3.4 
3.8 
4.0 
4.2 



4.45 
11.2 
15.1 
5.87 
3.80 
5.45 
8.27 
5.03 
18.3 
27.5 



The period. 



115 
666 
928 
349 
234 
335 
492 
309 
1,090 
1,690 



6,210 



SOUTH WAIEHU DITCH NEAR WAILUKU, MAUI. 

Location. — About 1^ miles northwest of Wailuku, one-fourth mile above Waihee 

canal crossing, in flume 60 feet below intake. 
Records available. — ^July 13, 1912, to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Fairly permanent. 
Diversions. — Ditch diverts all low-water flow. 
Discharge measurements. — ^Made from 2 by 4 at gage. 
Accuracy. — Records good. 

Discharge measurements of South Waiehu ditch near Wailuhu, Maui, in 1912-13. 



Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


Date. 


Hydrographer. 


Gage 
height. 


Dis- 
charge. 


1912 
July 13 
July 16 
Sept. 6 
Nov. 21 


J B Stewart 


Feet. 

0.48 

.45 

.42 

.48 


Sec.-ft. 
4.16 
3.79 
3.47 
4.27 


1913 
Mar. 15 
Mar. 19 
Mar. 21 


C. T. Bailey. . . . 


Feet. 

0.72 

.36 

.50 


Sec.-ft. 
9 98 


do 

do 

do 


do 

do 


2.51 
4.57 



108 WATER EESOUECES OE HAWAII, 1913. 

Daily discharge, in second-feet, of South Waiehu ditch near Wailuhu, Maui, for 191S. 



Day. 


Jan. 


Feb. 


Mar.- 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


3.0 
3.0 
4.6 
3.8 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 
3.0 


3.0 
8.0 
3.0 
3.0 
3.8 

17 

15 

19 
3.8 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

4.6 
6.8 
6.8 
12 
4.6 

3.0 
3.0 
3.0 
3.0 
4.6 

3.0 
3.0 
3.0 


3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
4.6 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 

5.7 

3.8 
4.6 
3.8 
2.8 
2.8 

2.8 
6.0 
2.8 
2.8 
2.8 

2.8 
2.8 
4.3 
2.8 
5.7 
2.8 


2.8 
3.0 
2.8 
3.0 
2.8 

2.8 
2.8 
2.8 
2.8 
2.8 

12 
9.9 

12 
4.3 
8.9 

10 

12 
8.4 
3.2 
2.8 

6.4 
6.4 
3.2 
2.8 
2.8 

2.8 
2.8 
2.8 
2.8 
2.8 


2.8 
3.2 
2.8 
2.8 
2.8 

2.8 
2.8 
2.8 
2.8 
2.8 

2.8 
6.4 
7.1 

12 

12 

3.3 
4.6 

2.8 
2.8 
2.8 

2.8 
2.8 
2.8 
2.8 
2.8 

2.8 
4.0 
6.4 
4.0 

2.8 
2.8 


2.8 
2.8 
3.0 

2.8 
2.8 

18 
2.8 
2.8- 
2.8 
3.3 

2.8 
3.3 
3.3 
2.8 
2.8 

2.8 
2.8 
2.8 
2.8 
2.8 

2.8 
2.8 
2.8 
2.8 
2.8 

2.8 
7.3 
2.8 
2.8 
3.3 


3.2 
4.6 
2.6 
2.6 
2.6 

2.6 
2.8 
2.8 
2.6 
2.6 

2.8 
3.2 
3.0 
3.3 
3.3 

3.3 
3.0 
2.6 
6.0 
3.3 

2.8 
2.5 
2.5 
3.0 
2.8 

2.7 
2.8 
3.5 
3.2 
3.3 
3.2 


2.8 
3.3 
3.6 
2.6 
3.2 

3.0 
3.3 
3.2 
3.3 
4.3 

4.1 
7.8 
2.6 
3.5 
3.5 

9.4 
3.2 
2.6 
2.6 
2.6 

3.3 
2.6 

2.7 
2.7 
2.7 

2.7 
3.0 
3.0 
3.0 
2.7 
6.8 


2.5 
15 
4.6 
2.5 
2.5 

2.6 
9.4 
3.0 
2.6 
2.6 

2.9 
2.6 
2.9 

2.4 
2.4 

3.0 
4.0 
6.3 
3.3 

2.8 

2.8 
■ 2.4 
2.7 
2.6 
2.9 

2.9 
2.8 
2.9 
3.0 
3.0 


3.0 
3.0 
3.5 
3.2 

2.8 

5.9 
3.0 
3.0 

2.8 
2.8 

2.8 
2.8 
2.8 
3.0 
2.8 

3.0 
2.8 
2.8 
2.9 
3.0 

3.2 

2.7 
3.2 

2.8 
2.8 

2.8 
2.8 
2.8 
2.8 
2.7 
2.7 


3.2 
5.0 
7.3 

3.2 

2.8 

2.8 
5.7 
10 
9.9 
4.6 

2.9 
3.0 
3.0 
3.0 
3.0 

3.0 
3.2 
8.1 
7.3 
6.3 

4.1 
3.3 
3.3 
4.1 
3.3 

4.0 
2.9 
2.8 
2.9 
3.0 


4.6 


2 


5.0 


3 


7.5 


4 


13 


5 


10 


6 


13 


7 


9.9 


8 


5.3 


9 


3.6 


10 


3.2 


11 


3.3 


12 


3.3 


13 

14 


2.8 
8.6 


15 


6.8 


16 


6.4 


17 


6.1 


18 


4.3 


19 


4.4 


20 


4.0 


21 


4.1 


22 


3.2 


23 


3.0 


24 


3.0 


25 


3.0 


26 .' 


3.0 


27 


3.0 


28 


3.0 


29 


3.0 


30 


3.0 


31 


3.S 







Monthly discharge of South Waiehu ditch near Wailuhu, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Meaij. 



Run-ofl 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

Jime 

July 

August 

September 

October 

November 

December 

The year 



4.6 
19 , 

6 
12 
12 

7.3 

5 

9.4 
15 

5.9 
10 
13 



3.0 
3.0 

2.8 
2.8 
2.8 
2.8 
2.5 
2.6 
2.4 
2.7 
2.8 
2.8 



3.08 
5.32 
3.40 
4.92 
3.93 
3.02 
3.04 
3.54 
3.56 
3.00 
4.33 
5.15 



19 



3.83 



189 
295 
209 
293 
242 
180 
187 
218 
212 
184 
258 
317 



2,780 



ISLAND OF MAUI. 



109 



NOETH WAIEHU STREAM NEAR WAILUKXT, MAUI. 

Location. — One raile above Wathee canal crossing and about 2J miles northwest of 

Wailuku; 50 feet above uppermost diversion. 
Records available. — July 9, 1912, to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Probably shifting. 
Discharge measurements. — ^Made by wading. 
Diversions. — None above station. 
Accuracy. — Records doubtful. 
Cooperation. — Station is maintained in cooperation with Wailuku Sugar Co. 

Discharge measurevients of North Waiehu Stream near Wailuku, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge. 


Mar. 14 . 


Feet. 
0.60 
.59 


Sec.-ft. 
3.58 
3.89 


Julys 


Feet. 
0.62 
.60 


Sec.-ft. 
3.92 


Apr. 10 


Aug. 14 


4.69 









Daily discharge, in second-feet, of North Waiehu Stream near Wailuku, Maui, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


4.2 
4.7 
4.7 
4.5 
4.2 

4.2 
4.2 
4.2 
4.2 
4.2 

4.2 
4.2 
4.2 
4.5 
4.2 

4.2 

4.2 
4.2 
4.2 
4.2 

4.2 
4.2 
4.2 
4.2 
4.2 

4.2 
4.2 
4.2 
4.2 
4.2 
4.2 


4.2 
4.2 
4.2 
4.2 
4.2 

4.2 
10 
5.5 
5.5 
5.5 

5.5 
6.5 
5.5 
5.5 
5.5 

5.5 

4.7 
7.4 
9.4 

4.7 

4.2 
4.2 
4.2 
4.2 
4.5 

4.2 
4.2 
4.2 


4.2 
4.2 
4.2 
4.2 
4.2 

4.2 
7.4 
4.5 
4.2 
4.2 

4.2 
4.2 
4.2 
4.2 
12 

5.5 

4.2 
4.2 
4.2 
4.2 

4.2 
8.1 
4.7 
4.2 
4.2 

4.2 
4.2 
4.7 
4.2 
4.2 
4.2 


4.2 
4.2 
4.2 
4.2 
4.2 

4.2 
4.2 
4.2 
4.2 
3.5 

12 
7.4 
6.0 
5.2 

12 

8.4 
7.1 
6.3 
4.2 
4.7 

5.8 
6.3 
6.3 
4.2 
4.2 

4.2 
4.2 
4.2 
4.2 
4.2 


4.2 
6.5 
4.2 
4.2 
4.2 

4.2 
4.2 
4.2 
4.2 
4.5 

4.2 

8.7 
5.2 

4.7 
4.7 

5.8 
4.5 
4.2 
4.2 
4.2 

4.2 
4.2 
4.2 
4.2 
4.2 

4.7 
4.2 
4.5 
4.2 
4.2 
4.2 


4.2 
4.5 
4.7 
4.7 
4.2 

4.2 
4.2 
4.2 
4.2 
5.0 

4.5 
4.7 
7.1 
14 
6.8 

4.7 
4.5 
4.5 
4.7 
4.5 

4.5 
4.5 
4.5 
4.5 
4.5 

4.5 
6.3 
4.7 
4.7 
6.3 


5.2 
7.4 
6.5 
4.2 
4.5 

4.7 
4.7 
4.7 
4.7 
4.5 

4.2 
4.2 
5.8 
4.7 
4.5 

4.5 
4.5 
4.5 
7.1 
4.7 

4.7 
4.7 
4.7 
4.7 
4.7 

4.7 
4.2 
4.2 
4.7 
6.2 
5.2 


4.2 
4.7 
5.0 
4.2 
4.2 

4.2 
4.2 
4.2 
4.2 
5.2 

4.2 
6.3 
4.2 
4.5 

4.7 

8.7 
4.2 
4.0 
4.0 
4.0 

4.0 
4.0 
4.0 
4.0 
4.0 

3.9 
3.9 
4.0 
3.9 
3.9 
10 


4.5 
12 
5.5 
4.7 
4.2 

3.9 
5.2 
4.2 
4.0 
4.0 

4.0 
4.2 
4.2 
4.2 
4.2 

4.2 
4.6 
5.8 
4.5 
4.5 

4.5 
4.5 
4.5 
4.5 
4.5 

4.5 
4.5 
4.5 
4.5 
4.5 


4.2 
4.5 
9.0 
6.8 
6.5 

6.5 
6.3 
5.8 
5.2 
5.0 

4.7 
4.2 
4.2 
4.2 
4.2 

4.2 
4.2 
4.2 
4.2 

4.2 

4.2 
4.2 
4.2 
4.2 
4.2 

4.2 
4.2 
4.2 
4.2 
4.2 
4.2 


4.5 
4.5 
4.5 
4.5 
4.5 

4.5 
5.5 

20 

16 

7.8 

7.1 
7.4 
6.8 
6.3 
6.3 

6.8 
6.8 
12 
8.1 

8.4 

6.5 
6.3 
6.3 
6.8 
6.8 

6.0 
6.5 
6.3 
6.3 
6.3 


7.1 


2 


6.3 


3 


6.5 


4 


22 


5 


12 


6 


14 


7 


8.7 


8 


7.4 


9 


7.4 


10 


7.4 


11 


7.4 


12 


7.4 


13 


7.4 


14 


14 


15 


8.4 


16 


7.8 


17 


7.8 


18 


7.8 


19 


7.8 


20 


7.8 


21 


7.8 


22 


7.8 


23 


7.8 


24 


7.4 


25 


7.4 


26 


7.4 


27 


7.4 


28 


7.4 


29 


7.4 


30 


7.4 


31 


7.4 







110 WATER EESOUECES OF HAWAII, 1913. 

Monthly discharge of North Waiehu Stream near Wailuku, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. 



Run-ofiE 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



4.7 
10 
12 
12 

8.7 
14 

7.4 
10 
12 

9.0 
20 
22 



22 



4.2 
4.2 
4.2 
3.5 
4.2 
4.2 
4.2 
3.9 
3.9 
4.2 
4.5 
6.3 



3.5 



4.25 
5.17 

4.76 
5.41 
4.58 
5.10 
4.85 
4.60 
4.72 
4.79 
7.21 
8.55 



5.33 



261 
287 
293 
322 
282 
303 
298 
283 
281 
295 
429 
526 



3,860 



WAIHEE STREAM NEAR WAIHEE, MAUI. 

Location. — About 300 feet above Waihee canal intake, 3 miles west of Waihee, and 

7 miles northwest of Wailuku. 
Records available. — April 1 to December 31, 1913. 
Gage. — Barrett & Lawrence water-stage recorder. 
Control. — Fairly permanent. 

Discharge measurements. — Made from footbridge or by wading. 
Diversions. — None above station. 
Accuracy. — Records very good except discharge December 5-31, which was estimated. 



Discharge measurements of Waihee Stream near Waihee, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Apr. 2.. 
June 30 
July 31. 



Gage 
height. 



Feet. 
2.75 
3.82 
2.78 



Dis- 



Sec.-ft. 
42.2 
260 
45.9 



Date. 



Aug. 13. 
Dec. 4... 



Gage 
height. 



Feet. 
3.00 
4.08 



Dis- 
charge. 



Sec.-ft. 
66.5 
35.9 



ISLAND OF MAUI. Ill 

Daily discharge, in second-feet, of Waihee Stream near Waihee, Maui, for 1913. 



Day. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


44 
43 
40 
40 
40 

39 
39 
38 

48 
44 

242 
91 

316 
97 

248 

127 
116 
56 
41 
35 

73 
68 
46 
62 
62 

37 
39 
35 
33 
49 


97 
84 
73 
58 
54 

55 
74 
62 
56 
53 

52 
112 

89 
116 

97 

69 
112 
94 
81 
49 

45 
48 
51 
49 
46 

67 
63 
60 
65 
44 
46 


49 
53 
51 
51 
54 

58 
55 
58 
63 
68 

51 
106 
89 
62 
95 

62 
56 
54 
63 
65 

■ 56 
54 

47 
44 
48 

44 
316 
127 

63 
255 


80 
138 
66 
21 
84 

69 
68 
55 
50 

48 

53 
116 
64 
45 
47 

46 
52 
60 
143 
136 

54 
44 
61 
68 
74 

84 
51 
77 
67 
74 
44 


38 
56 
46 
38 
37 

46 
42 
39 
49 

68 

97 
188 
62 
56 
68 

81 
49 
44 
43 

44 

64 
46 
46 
49 
44 

48 
56 
64 
45 
51 
53 


46 
162 
62 
50 

44 

44 
54 
45 
44 
43 

43 
43 
44 
44 

44 

46 
78 
69 
43 
42 

43 
44 
44 
43 
43 

43 
44 
44 
43 
42 


42 
40 
40 
40 
40 

41 
42 
45 
43 
41 

40 
42 
49 
41 
41 

41 
41 
43 
42 
42 

44 
45 
45 
44 
42 

42 
42 
39 
39 
38 
38 


45 
127 
91 
55 
40 

39 

97 

468 

375 

97 

114 
127 
68 
54 
51 

47 
46 
116 
138 
80 

81 
51 
46 
71 
138 

87 
56 
52 
63 
53 


56 


2 


66 


3 


28 


4... 


584 


5 


248 


6 


97 


7 


57 


8 


57 


9...^ 


49 


10 


46 


11 


46 


12 


44 




44 


14 


95 




46 




44 


17 


62 




81 


19 


44 




43 


21 


43 


22 


43 




43 


24 


42 




42 


26 


43 


27 . . 


44 




45 


29 


45 




46 


31 


45 









Note. — Discharge Dec. 5-31 estimated by comparison with record on lao streaam. 

Monthly discharge of Waihee Stream near Waihee, Maui, for 1913. 



Month. 



Ajpril 

May 

June 

July 

August 

September. 
October... 
November. 
December., 



The period. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



316 
116 
316 
143 

188 
162 
49 
468 
584 



76.3 
68.1 
76.6 
68.4 
66.7 
50.8 
41.7 
98.8 
74.5 



Run-off 
(total iu 
acre-feet). 



4,540 
4,190 
4,560 
4,210 
3,490 
3,020 
2,560 
5,880 
4,580 

37,000 



Accu- 
racy. 



112 



WATER KESOUECES OF HAWAII, 1913. 



SPRECKELS DITCH NEAR WAIHEE, MAUI. 

Location. — About 2 miles west of Waihee and about 500 feet below intake. 

Records available. — November 16, 1910, to September 30, 1913. 

Gage. — Vertical staff. 

Control. — Probably permanent. 

Discharge measurements. — Made by wading. 

Diversion. — Ditch, is second diversion from Waihee Stream. 

Accuracy. — Records fair. 

Discharge measurements of Spreckels ditch near Waihee, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 




Feet. 
0.11 
1.80 


Sec.-ft. 
0.51 




68.9 






Monthly discharge of Spreckels ditch near Waihee, Maui, for 1912-13. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



1912. 



January.. 
February. 

March 

April 



June 

July 

August 

September. 

October 

November. 
December.. 



0.0 
1.0 
7.2 
7.2 
1.8 

.5 
1.0 

.0 
1.0 
1.0 
1.6 
1.6 



2.24 
18.4 
31.4 
35.7 
13.9 

9.04 
16.8 
10.2 

2.90 
10.7 
19.1 
12.8 



The year. 



82 



15.2 



1913. 



January.. 
February. 

March 

April 



June , 

July 

August 

September . 



1.0 
1.0 

.5 

.5 
1.6 
1.2 

.9 
1.4 

.5 



13.6 
13.6 
23.9 
11.8 
12.2 
9.34 
8.78 
2.73 



The period. 



138 

1,060 

1,930 

2,120 

855 

538 

1,030 

627 

173 

658 

1,140 

787 



11, 100 



605 
755 
836 
1,420 
726 
726 
574 
540 
162 



6,340 



Note.— Ditch dry, Jan. 15-18, 21-24, and Aug. 27-30, 1912. 



ISLAND OF MAUI. 



113 



KAHAKULOA STREAM AT KAHAKULOA, NEAR WAIHEE, MAUI. 

Location— About 13 miles northwest of Wailuku at trail bridge of Kahakuloa, below 

all diversions. 
Records available. — August 27, 1912, to March 31, 1913. 
Gage. — Staff gage on left bank, just below trail bridge. 
Control. — Probably permanent. 
Discharge measurements.^ — ^Made by wading. 
Accuracy. — Records good. 

Station discontinued March 31, 1913, and record continued at new station 3 miles 
above mouth of stream by water-stage recorder. 

Daily discharge, in second-feet, of Kahakuloa Stream at Kahakuloa, near Waihee, Maui, 

for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Day. 


Jan. 


Feb. 


Mar. 


Day. 


Jan. 


Feb. 


Mar. 


1 


6 
6 

10 
6 
5 

5 
5 
5 
5 
5 


3 
3 
3 
3 
3 

137 

36 

26 

6 

5 


5 
5 
5 
5 
5 

5 
18 

8 
10 

5 


11 


5 

5 

21 

18 

10 

8 
6 
4 
3 
3 


3 
3 
3 
3 

4 

10 
6 
83 
39 
10 


5 
5 
5 
5 
20 

9 
11 

5 
5 
5 


21 


3 

5 
5 
5 
5 

5 
5 
3 
3 
3 
3 


8 
6 
6 
6 
18 

7 
5 
5 


5 


2 


12 


22 


25 


3 


13 


33 


7 


4 


14 


24 


5 


5 . ... 


15 


25 


10 


6 


16 


26 .... 


5 


7 


17 


27 


5 


8 


18 


28 


9 


9 


19 


29 


6 


10 


20 


30 


5 






31 


5 









Monthly discharge of Kahakuloa Stream at Kahakuloa, near Waihee, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. 



Minimum. 



Mean. 



Run-ofE 
(total in 
acre-feet). 



Accu- 
racy. 



January . . 
February 
March 



21 
137 
25 



6.0 
16.1 

7.5 



369 



KAHAKULOA STREAM NEAR HONOKAHAU, MAUI. 

Location. — About 12 miles southeast of Honokahau and 3 miles above mouth of 

stream. 
Records available. — ^January 22 to August 31, 1913. 
Gage. — Stevens water-stage recorder. 
Control. — Fairly permanent. 

Discharge measurements. — Made from footbridge or by wading. 
Diversions. — None above station. 
Accuracy. — Records for January, June, and July, good; for other months, poor. 

Discharge measurements of Kahakuloa Stream near Honokahau, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge. 


Jan. 23 


Feet. 
1.00 
1.17 


Sec.-ft. 
1.65 
3.57 


May 21 

Oct. 5 


Feet. 
1.10 
1.10 


Sec.-ft. 
2.46 


Mar. 9 


2.65 









97764°— WSP 373—15- 



114 WATER EESOUECES OF HAWAII^ 1913. 

Daily discharge, in second-feet, of Kahakuloa Stream near Honokahau, Maui, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jiiiie. 


July. 


Aug. 


1 




2.4 
2.0 
1.6 
1.6 
8.2 

38 
2.2 
2.6 
3.0 
3.4 

8.7 
4.1 

4.5 
4.9 
5.3 

5.7 
6.0 
6.4 
6.8 

7.2 

3.7 
2.5 
2.3 

2.2 

8.2 

3.1 
2.2 
2.1 


2.0 
2.0 
1.9 

2.0 
1.8 

1.8 
7.2 
3.0 
4.0 
2.3 

2.1 
2.0 
2.0 
2.3 


""i.'i 

2.5 
2.8 

59 
34 
86 
26 
68 

35 

35 
8.2 
8.8 
6.2 

32 

18 
8.5 
5.1 

15 

5.5 
7.5 
3.7 
3.4 
3.2 


3.2 
3.7 
3.2 

2.8 
2.6 

2.5 
8.5 
5.3 
25 
8.2 

14 
13 
12 
11 
9.7 

8.5 
7.3 
6.1 
4.9 
3.7 

3.1 
3.7 

5.8 
3.8 
3.8 

7.5 
6.9 
5.5 
7.2 
8.2 
4.4 


4.0 
3.6 
11 
9.5 
4.4 

5.1 
5.8 
5.3 
5.1 
7.5 

7.5 
5.1 
20 
9.8 

4.2 

6.9 
4.0 
3.2 
3.2 

2.8 

2.6 
3.0 
3.0 
3.1 
5.1 

3.6 
73 
23 

9.8 
22 


11 

19 
4.7 
3.6 

10 

5.3 
3.2 
3.1 
2.8 
3.1 

3.7 
13 

5.5 
2.8 
2.6 

3.0 
3.6 
3.1 
5.5 

2.8 

2.6 
3.0 
3.0 
3.1 

2.8 

4.7 
3.4 
3.4 
3.4 
2.8 
2.8 


3.0 


2 




11 


3 




3.6 


4 




3.0 


5 




3.4 


6 




3.8 


7 




3.7 


8 




8.5 


9 




3.1 


10 




8.5 


11 




11 






2.2 


13 




3.7 






3.1 


15 




2.8 


16 




2.8 






2.8 


18 




2.6 






2.6 


20 






21 








1.6 
1.6 
1.8 
2.0 

1.9 
2.0 
1.9 
1.6 
1.5 
2.0 




23 








25 




26 




27 




28 








30 








31 



















Note.— No record Mar. 15 to Apr. 7 and Aug. 20-31. 

Monthly discharge of Kahakuloa Stream near Honokahau, Maui, for 1913. 



Month. 


Discharge in second-feet. 


Run-ofl 
(total in 
acre-feet). 


Accu- 


Maximum. 


Minimum. 


Mean. 


racy. 


January 22-31 .'. 


2.0 
38 

7.2 
86 
25 
73 
19 
11 


1.5 
1.6 
1.8 
1.7 
2.5 
2.6 
2.6 
2.2 


1.79 
5.21 
2.60 
20.7 
6.94 
9.14 
4.73 
4.48 


36 
289 

72 
944 
427 
544 
291 
169 


A. 


February 


D. 


March 1-14 


D. 


April8-30 


D. 


May 


D 


June '. 


A. 


July 


A. 


August 1-19 


D. 






The period 








2,770 















Note.— No record Mar. 15 to Apr. 7. Automatic gage out of order Aug. 20 to Dec. 31, 1913. 



ISLAND OF MAUI. 



115 



HONOKAHAU STREAM NEAE HONOKAHAU MAUI. 

Location. — On right bank, 1,000 feet above Honokahau ditch intake, about 6 miles 

southeast of Honokahau post office. 
Records available. — ^March 6 to December 31, 1913. 
Gage. — Stevens water-stage recorder. 
Control. — Fairly permanent. 

Discharge measurements. — Made from cable 400 feet below gage or by wading. 
Diversions. — None above station. 
Accuracy. — Records good. 

Discharge measurements of Honokahau Stream near Honokahau, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


G ge 
height. 


Dis- 
charge. 


Mar. 7 


Feet. 
1.19 
1.07 
1.20 


Sec.-ft. 
19.0 
17.3 
20.0 


July 8 


Feet. 
1.21 
1.18 
1.11 


Sec.-ft. 
19.8 


8 


Aug. 22 


19.1 


May 21 


Oct. 4 


17 









Daily discharge, in second-feet, of Honokahau Stream near Honokahau, Maui, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 








35 
21 
19 
17 
18 

17 
17 
17 
26 
19 

183 
155 
248 
106 
200 

125 
129 
61 
30 
32 

62 
44 
61 

....... 

""ii 

29 
22 


73 
43 
46 
24 
21 

20 
24 
25 
21 

24 
47 

"'"24" 

22 
20 
24 
29 
23 

45 
33 
29 

27 
25 
21 


20 
20 
21 

22 
24 

28 
28 
27 
33 
43 

22 
68 
75 
28 
62 

28 
21 
20 
19 
18 

19 
20 
22- 
21 
29 

24 
127 
134 

53 
106 


71 
98 
36 
34 
52 

42 
30 
24 
20 
20 

20 
44 
45 
29 
23 

20 
20 
20 
36 

54 

25 
24 
26 
30 
27 

25 
20 
24 
22 
21 
20 


20 
23 
26 
20 
20 

30 
26 
24 
22 
53 

35 
183 
37 
36 
42 

58 
24 
19 
18 
18 

22 
22 
20 
26 

22 

20 
39 

22 


17 
17 
17 
16 
16 

16 
16 
16 
18 
17 


18 
16 
16 
18 
17 

44 
36 
55 
19 
16 

16 
16 
49 
43 
22 

21 
16 
16 
16 
16 

15 
15 
15 
15 

25 

18 
17 
18 
16 

15 
15 


15 
77 
91 
49 
21 

19 
30 
195 
257 
99 

122 
129 
65 
28 
26 

50 
57 
117 
123 
42 

89 
36 
28 
95 
135 

113 

38 
25 
23 
22 


22 


2 








22 


3 








44 


4 








264 


5 








151 


6 








145 


7 






30 
18 
19 
16 

16 
16 
15 
16 
53 

68 
25 
19 
17 
17 

26 
90 
20 
16 
40 

16 
18 
34 
18 
24 
55 


55 


8 






41 


9 






35 


10 






34 


11 






34 


12 . .. 






35 


13 






35 


14 






65 


IS 






46 


16 






32 


17 






46 


18 






83 


19 






32 


20 






28 


21 






29 


22 






27 


23 






26 


24 






26 


25 






26 


26 






26 


27 






25 


28 






25 


29 






25 


30 






25 


31 






25 















Note.— No record Jan. 1 to Mar. 6, Apr. 24-27, May 10-15, 18-19, and Aug. 29 to Sept. 20. 



116 WATEE EESOTJEGES OF HAWAII^ 1913. 

Monthly discharge of Honokdhau Stream near HonoTcahau, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



March 7-31 

April 1-23, 28-30. 
May 1-9, 16-31... 

Jime 

July 

August 1-28 

September 23-30. 

October 

November 

December 



90 
248 

73 
134 

98 
183 

18 

55 
257 
264 



The period. 



28.1 
66.1 
30.0 
39.4 
32.3 
33.1 
16.6 
21.6 
73.9 
49.5 



1,390 
3,400 
1,370 
2,340 
1,990 
1,840 
329 
1,330 
4,400 
3,040 



21,400 



HONOKAHAU DITCH AT INTAKE, NEAR HONOKAHAU, MAUI. 

Location. — About 9 miles by trail above Honokaliau, 350 feet below ditch intake. 

Records available. — February 3, 1907, to September 6, 1913. 

Gage. — Vertical staff. 

Control. — Probably permanent. 

Discharge measurements. — Made from plank at gage. 

Diversion. — Ditch diverts total low flow of Honokahau Stream. 

Accuracy. — Records good. 

Cooperation. — Gage is the property of the Honolua Ranch Co. 

Discharge measurements of Honokahau ditch at intake near Honokahau, Maui, in 1913. 

[C. T. Bailey, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Mar. 7 


Feet. 
1.88 
1.88 


Sec.-ft. 
20.5 


July 10 


19.7 






Monthly discharge of Honokahau ditch at intake, near Honokahau, Maui, for 1913. 



Month. 



January 

February 

March 

April 

May 

June 

July 

August 

September 1-6 . . . 

The period. 



Discharge in_ second-feet. 



Maximum. 



Minimum. 



21.8 
24.1 
22.5 
30.4 
28.3 
27.9 
27.3 
24.3 
23.2 



Run-off 
(total in 
acre-feet). 



1,340 
1,340 
1,380 
1,810 
1,740 
1,660 
1,680 
1,490 
276 

12, 700 



Accu- 
racy. 



ISLAND OF MAUI. 



117 



HONOLUA STREAM NEAR HONOKAHAU, MAUI. 

Location. — About 2 miles south, of Honokahau and 300 feet above Honokabau ditch 

crossing. 
Kecords available. — March 12 to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Probably shifting. 
Discharge measurements. — Made by wading. 
Diversions. — None above station. 
Accuracy. — Records for low and medium stages good; flood records are little more 

than estimates. 

Discharge measurements of Honolua Stream near Honokahau, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 



Mar. 12 
May 20 
May 22 



height. 



Feet. 
0.53 
.81 
.69 



Dis- 
charge. 



Sec.-ft. 
0.74 
4.11 
2.36 



Date. 



July 10. 
Aug. 22. 



Gage 
height. 



Feet. 
0.55 
.46 



Dis- 
charge. 



Sec.-ft. 
1.45 

.78 



Daily discharge, in second-feet, of Honolua Stream near Honokahau, Maui, for 1913. 



Day. 



Mar. 



Apr. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



0.8 
.6 
.5 

12 

15 

5.6 
2.2 
1.4 

.7 

1.0 
27 
3.7 
1.1 
2.9 

1.4 
1.1 
2.2 
1.2 
.8 
3.2 



3.0 
1.2 
1.1 



.4 
.4 
.4 
.4 
.4 

37 
22 

56 
28 
51 

37 
27 
15 
12 



16 
10 
15 
7.2 
31 

7.6 
9.1 
5.4 
5.0 
4.0 



2.4 
3.7 
4.0 
2.6 
1.9 



1.2 

1.2 
26 

4.4 
14 
28 

8.3 
7.4 

12 

18 
5.0 

3.2 
2.5 
2.4 
2.6 
2.6 

2.4 
3.2 
3.3 
3.2 
3.4 
1.6 



1.2 
1.2 
1.4 
2.4 
1.9 

2.7 
2.4 
1.6 
2.1 
5.6 

2.2 
6.5 
13 
2.4 
5.6 

2.6 
1.6 
.9 

.7 
.6 

.5 
.5 
.5 
.5 
.5 

1.0 
14 
24 
16 
12 



13 

13 
6.0 
5.2 
4.1 

6.9 
3.3 
2.4 
1.7 
1.4 

1.4 
1.6 
7.7 
4.1 
2.1 

1.5 
1.3 
1.2 

1.0 
4.1 

2.6 
1.5 
1.4 
1.5 
2.0 

1.6 
1.4 
1.0 



4.6 
1.0 



.7 
2.4 

2.1 

43 
4.4 
5.4 

14 



1.4 
5.4 
6.0 
1.5 



11 
2.6 
2.1 
1.5 
1.3 



.6 
.6 

.6 

.6 

2.2 

1.4 

1.0 



0.4 

.4 



2.8 
4.6 
6.0 



.6 

.6 

.6 

5.2 

1.2 

1.2 

.8 
.7 
.5 
.5 

.4 



24 



0.6 

.7 
24 
4.4 
3.1 

1.5 
1.2 

40 

17 

11 

9.6 
8.2 
6.2 
3.7 
3.4 

3.0 
3.0 

38 

69 
3.8 

3.0 
2.2 
1.7 
3.6 
30 

54 

15 
3.4 
1.9 
1.4 



1.7 
1.5 
1.5 

85 
55 

51 
6.9 

11 
3.8 
3.0 

3.0 
3.0 
2.8 
25 
8.5 

5.4 
39 
6.0 
6.9 
5.2 

4.3 
4.8 
3.6 
3.3 
3.0 

2.8 
2.6 
2.6 
2.2 
2.1 
2.1 



118 WATER EESOURCES OF HAWAH^ 1913. 

Monthly discharge of Honolua Stream near Honohahau, Maui, far 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off (in 
acre-feet). 



Accu- 
racy. 



March 12-31. 
April 



June 

July 

August 

September . 
October... 
November. 
December . 



The period. 



27 


0.5 


5fi 


.4 


28 


1.2 


24 


.5 


13 


.8 


43 


.7 


6 


.4 


24 


.3 


69 


.6 


85 


1.5 



4.22 
13.7 
5.69 
4.27 
3.17 
3.94 
1.12 
1.94 
12.2 
11.6 



168 
815 
350 
254 
195 
242 
67 
119 
726 
713 



3,650 



HONOKAWAI STREAM NEAR LAHAINA, MAUI. 



Location. — Eight miles nortlieast of Lahaina, 500 feet below junction of Honokawai 

and Amalu streams. 
Records available. — ^May 13 to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 

Discharge measurements. — Made from footbridge or by wading. 
Diversions. — Most of tbe normal flow is diverted into Honokawai ditch half a mile 

above gage. 
Accuracy. — Low-flow records good; flood discharges only estimates. 

Discharge m.easurements of Honokawai Stream near Lahaina, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


May 16 . - . .... . 


Feet. 
1.23 
.97 


Sec.-ft. 
1.06 


May 23 


.10 






Monthly discharge of Honolatvai stream near Lahaina, Maui, for 1913. 



Month.' 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



May 13-31. 

June 

July 

August 

September. 
October. .. 
November. 
December . 



12 

9.6 
12 

7.0. 

2.2 
10 
18 
21 



0.2 
.0 
.0 
.0 
.0 
.0 
.0 
.0 



2.41 
1.43 
1.11 

.66 

.09 

.48 

3.76 

1.65 



90.6 
85.1 
68.2 
40.6 
5.5 
29.5 

224 

101 



The period. 



644 



Note.— No discharge during periods as follows: June 1; July 9, 11, 16, 17, 24-31; Aug. 1-9, 11, 18-27, 30; 
Sept. 1, 2, 4-17, 19-30; Oct. 1-5, 9-12, 15-25, 27-31; Nov. 1, 2, 6, 7, 14, IS, 23, 28-30; Deo. 1-3, 12-14, 16, 
19-31. 



ISLAN^D OF MAUI. 



119 



HONOKAWAI DITCH NEAR LAHAINA, MAUI. 

Location. — ^Two miles above Pioneer Mill Co.'s power house, and about 7 miles 
northeast of Lahaina; 250 feet below junction with Amalu wooden flume and 1,000 
feet below intake. 

Records available. — July 1, 1912, to December 31, 1913. 

Gage. — A graduated rod gage, which the observer places in the center of flume each 
time a reading is taken. 

Control. — Probably permanent. 

Discharge measurements. — Made in flume near gage. 

Diversion. — Ditch diverts all low-water flow from Honokawai and Amalu streams. 

Accuracy. — Records good except extremely high discharges. 

Cooperation.- — Station maintained in cooperation with Pioneer Mill Co. 



Discharge measurements of HonoJcawai ditch near Lahaina, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 




Dis- 
charge. 



Apr. 18. 
Aug. 21. 



Sec.-ft. 
10.6 
6.24 



Daily discharge, in second-feet, of HonoJcawai ditch near Lahaina, Maui, for 1912-13. 



Day. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


Day. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1912. 
1 . . . 


7.9 
7.9 
8.6 
7.5 
8.6 

9.3 
6.7 

17 

10 
7.9 

6.7 
11 
7.2 
6.7 
6.5 


6.7 
6.5 
6.5 
6.5 
6.6 

6.5 
7.5 
7.5 

13 

16 

7.9 
8.2 
7.9 
8.6 
18 


6.5 
18 
7.2 
7.5 
6.8 

6.8 
14 

6.7 
7.4 
6.5 

6.5 
6.2 

6.2 
6.2 
6.2 


13 

6.8 
6.7 
6.5 
7.2 

6.8 
6.2 
6.8 
6.5 
6.5 

8.9 
7.5 
7.2 
12 
9.3 


7.0 
6.5 
6.2 
6.0 
5.9 

6.2 
6.2 
6.4 
22 
8.9 

8.2 
6.5 
6.2 
6.2 
6.0 


8.9 

12 

20 
6.7 
5.9 

5.9 

11 

13 
6.5 
6.0 

5.9 
5.9 
5.9 
7.2 
7.2 


1912. 

16 

17 


7.5 
6.5 
6.5 
6.5 
12 

8.2 
7.0 
12 
6.8 
6.5 

6.5 
6.8 
7.2 
6.7 
6.7 
6.8 


14 
7.9 
6.7 
6.5 
6.5 

6.5 
8.6 
6.8 
6.5 
6.5 

13 
9.1 

6.7 
9.6 
8.2 
7.2 


6.2 
6.2 
6.2 
6.2 
6.4 

7.2 
6.8 
6.2 
6.2 
6.2 

6.2 
6.2 
6.7 
9.1 
10 


6.4 
6.4 
6.2 
6.2 
6.0 

8.6 
20 
10 

8.4 
6.5 

14 
15 
17 
6.5 
11 
22 


22 
22 
23 
11 

8.7 

14 
8.6 
9.1 
6.8 
6.2 

6.2 
5.9 
6.2 
5.9 
5.8 


6.5 


2 


6.2 


3 . .. 


IS 


5.9 


4 


19 


17 


5 . 


20. 


8.2 


6 


21 

22 


17 


7 


22 


8 


23 


16 


9 


24 


8.7 


10 


25 

26 


6.5 


11 


17 


12 


27 . ... 


6.7 


13 


28 


12 


14 


29 

30 

31 . 


7.0 


15 


14 




6.5 









120 • WATER EESOUECES OF HAWAII, 1913. 

Daily discharge, in second-feet, of Honohawai ditch near Lahaina, Maui, for 1912-13 — Con. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1913. 
1 


6.8 
6.4 
17 
6.2 

5.8 

5.8 
5.8 
8.2 
8.6 
10 

6.5 
5.9 

23 

23 

23 

7.7 
6.2 
6.0 
6.2 

5.8 

5.6 
6.6 
5.6 
5.6 
5.6 

5.6 
5.6 
5.3 
5.0 
5.0 
5.4 


5.3 
5.0 
5.0 
5.0 

4.9 

10 
6.2 

17 
5.6 
5.0 

5.2 
5.0 
5.0 
5.0 
6.5 

6.2 
5.3 

22 

17 
5.9 

5.9 
5.3 
5.0 
5.0 
12 

5.8 
5.2 
5.0 


5.0 
5.0 
6.0 
5.0 
4.9 

4.9 
4.9 
4.9 
4.9 
4.9 

4.9 
4.8 
4.8 
4.8 
10 

13 
5.9 
5.6 
5.0 
5.0 

12 

21 
5.6 
6.0 

12 

5.2 
5.3 

11 
5.3 
8.9 

14 


15 
6.5 
5.6 
6.3 
6.2 

5.0 
5.0 

4.9 
6.8 
5.0 

20 
22 
22 
21 
23 

22 
21 
20 

8.2 
8.4 

8.6 
6.7 
8.6 
9.6 
8.9 

7.2 
9.6 

8.2 
8.6 
6.4 


12 
8.6 

10 
6.5 
6.5 

5.3 
5.0 
6.2 
5.0 
5.0 

6.6 
12 
8.0 
8.2 
3.8 

4.8 
6.2 
7.0 
5.0 

5.8 

6.3 
5.3 

5.4 
7.5 
7.2 

6.9 
6.9 
5.9 
5.3 
5.0 
5.0 


4.9 
4.9 
5.6 
5.0 
6.0 

6.2 
6.6 

6.8 
6.8 
6.8 

6.3 
7.6 
8.6 
6.7 
6.6 

6.2 
5.6 
5.2 
5.0 
5.0 

5.0 
5.0 
5.4 
5.6 
6.8 

6.9 

11 

17 
7.9 
9.6 


9.6 
8.9 
8.0 

8.6 
8.6 

8.2 
7.5 
6.2 
5.6 
5.3 

5.3 
7.2 
7.5 
7.5 
6.2 

5.4 
5.3 
5.8 
7.9 
6.2 

6.2 
7.0 
6.6 
6.2 

5.8 

5.3 
5.0 
5.6 
5.0 
5.0 
5.0 


6.0 
5.0 
5.0 
5.0 
5.2 

7.9 
6.3 
6.8 
5.0 
7.9 

5.2 
23 

7.4 
10 

9.6 

11 
8.2 
5.3 
6.0 
5.0 

5.0 
5.0 
5.0 
5.0 
5.3 

6.0 
10 
11 

7.2 
5.9 
13 


5.3 
5.0 
7.9 
5..6 
5.2 

5.0 
5.0 
5.3 
6.6 
5.3 

5.2 
5.9 
5.3 
5.0 
6.3 

6.2 
9.1 
12 
9.1 
6.3 

6.0 
6.0 
5.0 
5.0 

4.8 

4.8 
4.8 
4.8 
5.2 
5.3 


5.3 
5.2 
5.3 
5.4 
5.0 

7.9 
7.7 
15 
6.8 
5.0 

5.3 
6.0 

11 

10 

6.4 

5.3 
5.0 
5.0 
5.0 
4.9 

6.0 
6.0 
5.0 
5.2 
9.1 

8.4 
5.3 
5.0 
5.0 
6.0 
6.0 


5.0 
5.0 

16 

14 
6.9 

6.3 
6.2 

18 
18 
16 

16 

19 

13 
6.5 
6.2 

8.6 
14 
16 
16 

8.6 

16 
7.4 
6.2 

12 

16 

16 

12 
6.2 
5.9 
6.3 


6.8 


2 


5.3 


3 


5.0 


4 


11 


6 


6.2 


6 


7. a 


7 


6.6 


8 


5.0 


9 


6.5 


10 


6.8 


11 


5.9 


12 


5.8 


13 


5.6 


14 


5.9 


IS 


6.2 


16 


6.3 


17 


6.8 


18 


14 


19 


8.0 


20 


5.9 


21 


6.3 


22 


6.3 


23 


6.0 


24 


6.0 


25 


5.0 


26 


5.3 


27 


5.0 


28. 


5.0 


29 


5.0 


30 


6.0 


31 


5.0 







Monthly discharge of Honohawai ditch near Lahaina, Maui, for 1912-lS. 



Month. 



Discharge in second-feet. 



Maximum. 



Minimum. 



Mean. 



Eun-oflf 
(total in 
acre-feet). 



Accu- 
racy. 



July 

August 

September. 

October 

November. 
December . . 



1912. 



The period . 



January ... 
February. . . 

March 

April 

May 

June 

July 

August 

September. 

October 

November. 
December.. 



1913. 



The year. 



23 
22 
21 
23 
12 
17 
9.5 
23 
12 
15 
19 
14 

23 



6.5 
6.6 
6.2 
6.0 
6.8 
5.9 



5.0 
4.9 
4.8 
4.9 
3.8 
4.9 
5.0 
5.0 
4.8 
4.9 
5.0 
6.0 



8.06 
8.52 
7.36 
9.29 
9.19 
9.81 



8.19 
7.19 
7.06 

11.1 
6.49 
6.61 
6.56 
7.26 
5.78 
6.27 

11.2 
6.17 

7.48 



495 
524 
438 
571 
547 
603 



3,180 



504 
399 
433 
660 
399 
393 
403 
446 
344 
386 
666 
379 

6,410 



ISLAND OF MAUI. 



121 



KAHOMA DITCH AT WEIR, NEAR LAHAINA, MAUI. 

Location. — About 3J miles east of Lahaina, at portal of the lower of two development 

tumiels of Pioneer Mill Co. 
Records available. — August 1, 1911, to December 31, 1913. 
Gage.— Staff. 
Discharge measurements.^ — A 4-foot sharp-crested weir with end contractions; 

measured discharge from development tunnel and amount diverted by small pipe 

from stream. Measurements checked by current meter. 
Accuracy. — Records very good. 
Cooperation. — Records kept by Pioneer Mill Co. 



Discharge measurements of Kahoma ditch at weir, near Lahaina, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 




Dis- 
charge. 



Apr. 14. 
Aug. 19 . 



Sec.-ft. 
7.54 
3.79 



Daily discharge, in second-feet, of Kahoma ditch at weir, near Lahaina, Maui, for 1913. 



Day. 



1 
2 
3 
4 
5 

6 
7 
8 
9 
10 

11 
12 
13 
14 
15 

16 
17 
18 
19 
20 

21 
22 
23 
24 
25 

26 
27 
28 
29 
30 
31 



Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jime. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


3.50 


2.76 


2.76 


6.19 


5.58 


3.00 


6.19 


3.37 


3.76 


3.37 


3.37 


3.24 


2.76 


2.88 


5.58 


4.71 


3.00 


7.97 


3.37 


3.50 


3.37 


3.37 


4.02 


2.76 


2.76 


4.43 


4.43 


3.00 


7.64 


3.37 


4.43 


3.37 


6.50 


3.37 


2.64 


2.76 


3.12 


3.63 


3.00 


7.80 


3.37 


3.50 


3.37 


6.19 


3.12 


2.64 


2.76 


3.12 


3.12 


3.00 


7.14 


3.37 


3.50 


3.37 


4.43 


2.88 


3.89 


2.76 


3.00 


3.12 


3.89 


5.88 


4.71 


3.37 


6.82 


3.76 


2.88 


7.64 


2.76 


3.00 


3.12 


3.63 


5.29 


5.73 


3.37 


5.58 


3.50 


3.89 


3.89 


2.76 


2.88 


3.12 


3.63 


4.71 


4.16 


3.37 


6.19 


6.82 


7.14 


2.88 


2.76 


5.58 


3.00 


4.71 


3.63 


3.63 


3.37 


4.43 


7.80 


6.35 


2.88 


2.76 


3.37 


3.00 


5.58 


3.50 


3.50 


3.37 


3.63 


6.82 


4.29 


2.76 


2.76 


7.80 


3.00 


3.63 


3.37 


3.50 


3.37 


3.50 


6.50 


5.29 


2.76 


2.76 


7.80 


5.43 


4.71 


4.99 


7.80 


3.63 


3.50 


6.98 


7.14 


2.76 


2.76 


7.97 


4.85 


6.19 


5.29 


5.58 


3.76 


5.58 


5.58 


7.14 


2.64 


2.76 


6.82 


6.66 


4.43 


5.29 


5.58 


3.63 


5.73 


4.71 


7.47 


5.73 


4.43 


8.14 


6.35 


5.58 


4.43 


5.88 


3.63 


3.76 


4.99 


4.43 


3.00 


5.43 


7.80 


4.43 


4.43 


3.63 


5.43 


4.16 


3.76 


5.88 


3.63 


2.88 


5.14 


7.97 


3.63 


3.37 


3.63 


4.85 


5.58 


3.50 


6.50 


3.12 


7.64 


3.89 


7.14 


6.04 


3.37 


3.50 


4.02 


7.80 


3.50 


6.50 


3.63 


6.66 


3.12 


5.29 


5.73 


3.12 


5.14 


3.63 


5.14 


3.50 


6.98 


3.12 


3.37 


2.88 


4.99 


3.63 


3.12 


5.58 


3.76 


3.76 


3.50 


5.14 


3.12 


3.63 


6.19 


5.73 


3.37 


3.00 


3.89 


3.50 


3.50 


3.50 


5.58 


2.88 


2.88 


6.82 


4.57 


3.37 


3.00 


3.63 


3.50 


3.37 


3.50 


4.57 


2.88 


2.76 


3.63 


5.88 


3.12 


3.00 


4.16 


3.50 


3.37 


3.50 


4.43 


2.88 


2.76 


3.12 


5.29 


6.19 


3.00 


4.71 


3.37 


3.50 


4.71 


7.80 


2.88 


5.58 


5.14 


6.50 


3.50 


4.43 


3.76 


4.02 


3.37 


5.88 


7.47 


2.88 


4.16 


3.12 


4.29 


5.88 


4.99 


3.50 


3.50 


3.37 


4.43 


7.14 


2.88 


4.16 


4.71 


5.58 


3.89 


5.58 


3.50 


3.50 


• 3.37 


3.63 


6.04 


2.88 


4.16 


6.19 


6.19 


3.37 


6.98 


3.50 


5.58 


3.37 


3.50 


4.43 


2.88 




3.63 


4.99 


3.12 


5.58 


3.37 


4.43 


3.37 


3.50 


3.89 


2.88 




4.43 


3.63 


3.12 


6.19 


3.37 


4.43 


3.37 


3.50 


3.89 


2.88 




6.82 




3.00 




3.37 


5.88 




3.50 





Dee. 



3.76 
3.76 
3.76 
7.47 
6.50 

6.19 
4.57 
3.89 
3.50 
3.50 

3.37 
3.37 
3.37 
3.37 
3.37 

3.37 
3.37 
6.50 
4.71 
3.89 

3.37 
3.37 
3.37 
3.37 
3.37 

3.37 
3.37 
3.24 
3.24 
3.24 
3.24 



122 WATEE EESOUECES OF HAW AH, 1913. 

Monthly discharge of Kahoma ditch at weir, near Lahaina, Maui, for 1913. 



Month. 


Discharge m second-feet. 


Run-off 
(total in 
acre-feet). 


Accu- 


Maximum. 


Minunum. 


Mean. 


racy. 




7.47 
7.64 
6.82 
8.14 
6.66 
6.98 
7.97 
7.80 
7.80 
6.82 
7.80 
7.47 


2.88 
2.64 
2.76 
2.88 
3.00 
3.00 
3.37 
3.37 
3.37 
3.37 
3.37 
3.24 


3.92 
3.75 
3.79 
5.49 
4.15 
4.14 
4.69 
4.32 
3.80 
4.08 
5.58 
3.94 


241 
208 
233 
327 
255 
246 
288 
266 
226 
251 
332 
242 


A 




A 




A 




A 


May 


A 




A 


July 


A 




A 




A 




A 




A 




A 








8.14 


2.64 


4.30 


3,120 









LAHAINALTJNA STREAM NEAR LAHAINA, MAUI. 



Location. — One-fourth mile above Lahainaluna Seminary, about IJ miles northeast 
of Lahaina, and 8 feet above Pioneer Mill Co.'s upper ditch intake. Previous to 
May 7, 200 feet downstream from present location. 

Records available. — August 1, 1911, to December 31, 1913. 

Gage. — Vertical staff; datum changed May 7, 1913. 

C ontrol. — Shifting . 

Disch.arge measurements. — Made by wading. 

Diversions. — Most of the normal flow of the stream is diverted into Lahainaluna ditch 
about 1 mile above the gage. 

Accuracy. — Records good except for flood discharges. 

Cooperation. — Station maintained in cooperation with Pioneer Mill Co. 

Discharge measurements of Lahainaluna Stream, near Lahaina, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 



Apr. 15 
Apr. 17 

May 7 a 



Gage 
height. 



Feet. 
1.95 
1.45 
1.02 



Dis- 
charge. 



Sec.-ft. 
125 
54.7 
1.00 



Date. 



May 12. 
May 16. 
Aug. 19. 
Sept. 30 



height. 



Feet. 
1.18 
1.40 
1.18 
1.15 



Dis- 
charge. 



Sec.-ft. 

1.73 

3.07 

.96 

.91 



a Gage moved upstream 200 feet; new datum. 



ISLAND OP MAUI. 123 

Daily discharge, in second-feet, of Lahainaluna Stream near Lahaina, Maui, for 1912-13. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1912. 
1 


2.2 
2.3 
1.8 
1.8 
2.0 

1.6 
1.6 
2.2 
2.0 
1.6 

1.8 
1.8 
1.6 
1.6 
1.6 

1.6 
1.6 
1.5 
1.3 
1.3 

1.3 
1.3 
1.3 
1.3 
1.3 

1.3 
1.3 
1.3 
1.2 
1.2 
1.2 

1.3 
1.3 
1.2 
1.2 
1.2 

1.1 
1.1 
1.2 
1.2 
1.3 

1.3 
1.3 

12 

12 
8.6 

1.6 
1.3 
1.1 
1.1 
1.0 

1.2 
1.1 
1.1 
1.2 
1.2 

1.2 
1.2 
1.2 
1.3 
1.3 
1.5 


1.2 
2.5 
2.3 
1.5 
1.5 

1.4 
1.3 
1.3 
1.3 
2.0 

1.3 
1.3 
1.3 
1.2 
1.2 

1.2 
1.2 
1.2 
11 

46 

124 
55 
8.0 
3.9 
3.6 

3.5 
100 
6.8 
1.8 

1.3 
1.3 
1.3 
1.3 
1.3 

1.4 
1.4 
22 
1.4 
1.4 

1.3 
1.3 
1.3 
1.3 
1.3 

1.4 
1.3 
8.0 
7.0 
1.4 

1.5 
1.4 
1.4 
1.3 
3.6 

1.4 
1.3 
1.3 


1.5 
3.6 
3.9 
2.0 
1.8 

1.6 
3.1 
2.3 
4.6 
2.5 

22 
3.6 
3.1 
1.5 
1.5 

1.5 
10 
6.4 
1.6 

2.7 

1.5 
1.5 
1.3 
1.3 
1.2 

1.2 
1.0 
1.0 
1.4 
5.1 
6.8 

1.3 
1.3 
1.3 
1.3 
1.3 

1.3 
1.3 
1.3 
1.3 
1.3 

1.3 
1.2 
1.2 
1.2 
1.5 

1.4 
2.2 
1.4 
1.4 
1.3 

4.3 
8.0 
1.4 
1.3 
2.6 

1.4 
1.9 
4.7 
1.4 
3.2 
10 


7.0 

11 
6.6 
5.6 

32 

16 

46 

20 
8.8 
7.2 

3.5 
3.2 
3.1 
8.0 
1.8 

1.6 
1.9 
1.8 
1.5 
1.5 

1.5 
3.1 
1.6 

2.8 
8.8 

3.9 

2.0 
1.8 
1.5 
1.8 

2.4 
2.2 
1.6 
1.4 
1.4 

1.3 
1.3 
1.3 

2.7 
1.4 

78 
44 
85 
12 
88 

15 

18 
5.6 
2.4 
2.4 

2.4 
2.0 
3.6 
1.7 
6.4 

1.8 
1.9 
2.2 
1.6 
1.6 


1.8 
3.4 
1.4 
2.9 

4.4 

5.1 
1.5 
4.2 
1.5 
1.5 

1.5 
1.4 
1.3 
1.3 
1.3 

1.3 
1.3 
1.3 
2.7 
1.5 

6.4 
2.8 
1.8 
2.7 
1.5 

3.6 
19 
4.4 
1.6 
1.5 
1.5 

1.4 
1.4 
1.4 
1.4 
1.4 

1.4 
1.4 
1.4 
1.4 
1.3 

1.3 
1.7 
3.0 

32 

12 

3.9 
3.5 
4.6 
5.5 
2.9 

1.9 
1.9 
1.9 
3.4 
2.0 

2.8 
2.0 
1.7 
1.6 
1.6 
1.6 


1.5 
1.4 
1.3 
1.3 
10 

1.1 
1.1 
1.1 
2.5 
1.4 

1.3 
1.3 
1.3 
1.5 

1.8 

2.0 
1.8 
1.3 
1.5 
1.8 

8.0 
1.5 
1.6 
5.1 
1.5 

1.5 
1.3 
1.3 
1.3 
1.3 

1.6 
1.6 
1.6 
1.6 
1.6 

2.4 
2.7 
2.3 
4.1 
7.9 

1.7 
5.5 
6.0 
1.8 
1.7 

1.7 
1.5 
1.5 
1.4 
1.4 

1.4 
1.4 
1.4 
1.8 
2.3 

3.9 
6.2 

21 
3.7 

20 


2.2 
1.6 
2.2 
3.9 
2.0 

1.1 
1.5 
1.1 

7.6 
1.5 

1.5 
1.3 
2.2 
1.4 
1.2 

1.1 
1.3 
1.1 
1.1 
1.0 

1.3 
1.3 
1.3 
3.6 
1.4 

1.0 
2.0 
1.1 
1.1 
1.1 
1.0 

13 
27 

6 

3.4 
26 

6.0 
3.9 
2.6 
1.9 
2.0 

1.9 
4.8 
6.3 
2.8 
2.3 

1.9 
1.9 
1.9 
2.0 
2.3 

1.9 
2.0 
4.4 
2.2 
2.3 

2.0 
2.0 
1.6 
1.5 
1.5 
1.5 


1.1 
1.1 
1.1 
1.1 
1.1 

1.0 
1.0 
1.4 
2.5 
4.6 

8.0 
3.1 
1.0 
1.0 
3.5 

2.0 

1.8 

.5 

.5 

.5 

.5 
2.0 
1.0 

.5 
.5 

.9 
.5 
1.1 
1.8 
2.5 
2.2 

1.6 
1.6 
1.6 
1.6 
1.6 

3.2 
2.0 
1.7 
1.6 
2.0 

1.7 
66 
2.0 
4.0 
2.2 

9.8 
2.3 

.8 

1.0 

.9 

.9 
.9 
.9 
1.5 
1.0 

.8 
.8 

1.0 
.8 
.9 

3.1 


2.2 

14 
1.4 
1.8 

.7 

16 

5.8 

.9 

1.0 

.5 

.5 
.5 
.5 
.5 
.5 

.5 

.7 
.7 
.9 
.8 

.8 
.8 
.8 
.8 
.9 

.9 

.9 

.9 

1.8 

7.2 

0.7 
.7 

1.0 
.9 

.7 

.6 
.6 

.7 
.6 
.7 

1.4 
.9 

2.0 
.9 

.8 

1.5 

7.1 
30 
1.1 

.7 

.9 

.9 

1.0 

.8 
.8 

.7 
.7 
.7 
1.0 
.8 


3.6 

2.8 

.9 

.5 

.5 

.7 
.7 
1.8 
.7 
.8 

.8 

.7 

1.0 

2.3 

.7 

.8 

.7 
.7 
.7 
.7 

3.1 

2.8 

4.2 

1.1 

.6 

8.0 
7.0 
2.5 
1.3 
3.2 
78 

0.9 

.7 
.9 
.8 
.7 

8.6 

1.0 

15 

1.2 

.5 

.6 

.8 

32 

4.8 

1.2 

.6 
.6 

.7 
.6 
.7 

.7 
. 7 
.7 
.9 
22 

1.4 

.7 
.7 
.6 
.6 
.6 


2.0 

.7 
.7 
.6 
.8 

.8 
.7 

1.6 
132 

3.9 

5.1 
2.3 
1.5 
1.0 
1.0 

3.1 
5.6 
6.4 
4.2 
3.9 

4.2 
2.5 
2.8 
.9 
1.0 

.7 

.7 

1.4 

1.4 

1.4 

0.6 
.6 
22 
20 

1.0 

1.0 

2.9 
4.8 

57 

36 

12 
6.3 
4.0 
1.4 
1.4 

12 
17 
50 
18 
2.2 

1.6 
1.4 
1.3 
9.8 
11 

23 
4.5 
1.7 
1.5 
2.2 


2.5 


2 . . 


2 


3 


2.8 


4 


1.5 


5 


1.5 


6 


.8 


7 


3.1 


8.. 


1.0 


9 


1.0 


10 


1.0 


11 


1.0 


12 


.9 


13 


.9 


14 


.9 


15 


1.3 


16 


1.3 


17 


1.3 


18 . . 


1.0 


19 


2 5 


20 


2.0 


21 


16 


22 . . 


55 


23 


29 


24 


3.4 


25 


2.4 


26 


14 


27 


2.5 


28 


2.0 


29 


2.4 


30 


3.1 


31 


2.3 


1913. 
1 


2.0 


2 . . .. 


1.7 


3 


1.2 


4 


24 


5 


4.0 


6 


2.9 


7 


2.3 


8 


2.1 


9 


2.0 


10 


1.7 


11 


1.4 


12 . .. 


1.5 


13 


1.6 


14 


1.6 


15 


1.6 


16 


1.6 




1.6 


18 


12 


19 


2.4 


2C 


1.6 


21 


1.5 


22 


1.5 


23 


1.5 


24 


1.5 


25 


1.5 


26 


1.5 


27 


1.5 


28 


1.4 


29 


1.4 


30 


1.4 


31 


1.4 







124 ' WATER EESOUECES OF HAWAII, 1913. 

Monthly discharge of Lahainaluna Stream near Lahaina, Maui, for 1912-13. 



Month. 



Discharge in second-feet. 



Maximum. 



Minimum. 



Mean. 



. Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



1912 

January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 

1913. 

January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



2.3 
124 

22 

46 

19 

10 
7.6 
8.0 

16 

78 
132 

55 



132 



1.2 
1.2 
1.0 
1.5 
1.3 
1.1 
1.0 
.5 
.5 
.5 
.6 



1.1 
1.3 
1.2 
1.3 
1.3 
1.4 
1.5 



.6 
1.2 



1.57 
13.4 
3.36 
7.23 
2.88 
2.09 
1.74 
1.66 
2.21 
4.32 
6.50 
5.24 



4.31 



2.16 
2.60 
2.17 

13.1 
3.44 
3.82 
4.61 
3.93 
2.06 
3.31 

10.9 
2.80 



771 
207 
430 
177 
124 
107 
102 
132 
266 
387 
322 



3,120 



133 
145 
133 

778 
212 
227 
283 
242 
123 
204 
649 
172 



4.56 



2,070 



LAHAINALUNA DITCH NEAR LAHAINA, MAUI. 

Location. — One and one-half miles east of Lahaina, 200 feet above intake for Lahai- 
naluna School power house. 
Records available. — ^May 6 to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 
Discharge measurements. — Made by wading. 

Diversions. — Ditch diverts nearly all low-water flow from Lahainaluna Stream. 
Accuracy. — Records good. 

Discharge measurements of Lahainaluna ditch near Lahaina, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 



May 7., 
May 12. 
Aug. 19 



Gage 
height. 



Feet. 
0.80 



.77 



Discharge, 



Sec.-ft. 
2.85 
3.31 
2.04 



Date. 



Sept. 30. 
Oct. 3... 



Gage 
height. 



Feet. 
0.72 
.76 



Dis- 
charge. 



Sec.-ft. 
1.92 
1.98 



ISLAND OF MAUI. 125 

Daily discharge, in second-feet, of Lahainaluna ditch near Lahainxi, Maui, for 1913. 



Day. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 




2.7 
2.7 
3.0 
2.7 
2.9 

3.2 

4.3 
4.6 
5.4 
5.5 

4.3 

4.3 
5.4 
4.0 
4.0 

3.6 
2.9 
2.9 
2.9 
2.9 

2.9 
2.7 
3.0 
3.4 
4.0 

4.6 
4.3 
5.7 
4.0 
4.9 


5.2 
5.4 
4.3 
4.6 
5.5 

4.9 
4.0 
2.9 
2.6 
2.4 

2.4 
4.0 
4.6 
4.3 
3.2 

2.9 
2.7 
2.6 
2.7 
3.4 

2.9 
3.6 
3.7 
3.4 
2.7 

2.2 

2.1 
2.5 
2.7 
2.6 
2.6 


2.6 
2.7 
2.4 
2.4 

2.4 

4.0 
4.3 
4.0 
3.2 
4.0 

2.9 
7.4 
4.9 
5.2 
5.0 

5.8 
2.9 
2.9 
2.4 
2.4 

2.2 
2.1 
2.0 
3.0 
2.1 

2.4 
2.6 
2.6 
2.9 
2.1 
4.8 


2.9 
2.6 
2.9 
1.9 
2.1 

2.1 
2.1 
2.0 
2.0 
2.4 

3.2 
3.2 
3.3 
2.9 

2.4 

3.4 
5.5 
6.8 
4.6 
3.7 

2.9 
1.9 
1.9 
2.1 
1.8 

1.9 
2.0 
1.9 
2.1 
1.6 


2.1 
1.5 
1.6 
2.1 
1.6 

4.9 
3.7 
6.1 
3.6 
3.2 

3.4 
2.9 
4.8 
4.0 
2.1 

2.6 
2.4 
2.1 
2.0 
2.1 

1.5 
1.4 
1.4 
2.0 
4.0 

3.4 
2.2 
2.1 
1.6 
1.6 
2.1 


1.9 
2.0 
6.3 
5.2 
2.6 

2.5 
1.9 
6.1 
7.1 
4.0 

4.0 
2.6 
1.4 
2.4 
2.1 

7.4 
8.3 
10 
9.7 
6.0 

6.1 
5.2 
4.6 
7.1 
8.0 

8.5 
7.1 
3.4 
2.9 
3.2 


2.6 


2 ... 




2 6 


3 




2.9 


4 




8.1 


5 




6.8 


6 


2.1 
2.6 
2.9 
2.6 
2.9 

2.9 
6.1 
4.6 
5.8 
3.2 

2.1 
1.9 
2.6 
2.4 
2.0 

2.5 
2.4 
2.4 
2.9 
3.2 

3.7 
3.4 
3.2 
3.2 
2.9 
2.9 


5.2 


7 


3.4 


8 


2.4 


9.. 


2.4 


10 


2.4 


11 


2.9 


12 . 


2.5 




2.5 


14 . 


2.6 


15 


2.9 


16 


2.6 


17 


2.7 


18 


6.1 


19 


4.3 


20 . 


2.6 


21 ; 


2.6 


22 


2.7 


23 


2.6 


24 


2.9 




2.6 


26 


'>5 


27 


2.6 


28 


2.6 


29 . . 


2.6 


30 


2.6 


31 


2.6 







Monthly discharge of Lahainaluna ditch near Lahaina, Maui, for 1913. 



Month. 


Discharge in second-feet. 


Run-o£E 
(total in 
acre-feet). 


Accu- 


Maximum. 


Minimum. 


Mean. 


racy. 


May 


6.1 
5.7 
5.5 
7.4 
6.8 
4.9 
10 
8.1 


1.9 
2.7 
2.1 
2.0 
1.6 
1.4 
1.4 
2.4 


3.05 
3.79 
3.41 
3.31 
2.74 
2.65 
4.99 
3.21 


157 
226 
210 
204 
163 
163 
297 
197 


A. 




A. 


July 


A. 




A. 


September 


A. 




A. 


November 


A. 


December , . . . 


A. 














1,620 















126 



WATER EESOUECES OF HAWAII^ 1913. 



KAUATJLA DITCH NEAR LAHAINA, MAUI. 

Location. — ^About 100 feet below intake which is uppermost on the stream, about 3 

miles east of Lahaina. 
Records available. — October 16, 1911, to December 31, 1913. 
Gage. — Vertical staff. 

Discharge measurements. — Made in flume at gage. 
Control. — Probably permanent. 

Diversion. — Ditch diverts all low flow of Kauaula Stream. 
Accuracy. — Records good. 
Cooperation. — Station is maintained in cooperation with Pioneer Mill Co. 

Discharge measurements of Kauaula ditch near Lahaina, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 



Apr. 15. 
29. 



height. 



Feet: 
1.26 
.92 



Dis- 
charge. 



Sec.-ft. 
14.7 
10.5 



Date. 



Aug. 19. 



height. 



Feet. 
0.84 



Dis- 
charge. 



Sec.-ft. 

7.S 



Daily discharge, in second-feet, of Kauaula ditch near Lahaina, Maui, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


7.5 

7.5 
8.2 
7.5 
6.8 

6.8 
6.4 
6.4 
6.4 
6.4 

6.0 
6.0 
11.9 
12.8 
14.6 

11.9 
9.9 
8.9 
8.7 
8.7 

8.7 
7.8 
7.5 
7.2 
6.8 

6.4 
6.3 
6.3 
6.0 
6.0 
6.0 


6.3 
6.0 
6.0 
5.6 
5.6 

5.6 
6.0 
11.9 
9.2 

7.5 

7.5 
6.8 
6.4 
6.4 
6.0 

6.0 
6.3 
7.0 
15.5 
8.0 

8.4 
7.0 
6.8 
6.8 
12.8 

8.9 
6.3 
6.0 


6.8 
6.6 
6.0 
6.0 
6.0 

6.0 
6.0 
5.6 

5.4 
5.3 

5.2 
5.0 
4.9 
4.9 
6.0 

7.8 
6.0 
6.0 
6.3 
6.8 

6.8 
8.4 
6.4 
6.3 
6.0 

6.0 
6.0 

6.4 
6.0 
5.6 
12.8 


7.5 
6.8 
6.0 
6.0 
4.6 

4.6 
5.0 
5.0 
6.0 
5.3 

18.2 
18.2 
18.2 
11.0 
18.2 

18.2 
18.2 
18.2 
14.6 
12.3 

11.0 
11.0 
14.6 
11.0 

13.7 

13.7 
11.9 
9.2 
9.2 

8.7 


8.2 
9.2 
9.2 

7.8 

7.5 

7.5 
7.5 
6.8 
6.4 
6.4 

6.4 
8.0 
15.5 
12.8 
12.8 

12.8 
18.4 
12.8 
12.6 
11.0 

12.3 
11.0 
10.6 
10.1 
9.2 

8.4 
8.4 
7.5 
7.5 
7.2 
6.8 


6.8 
6.4 
6.4 
6.4 
6.0 

6.3 
6.0 
6.0 
9.2 
11.0 

7.5 
8.4 
10.1 
8.4 
7.5 

9.2 

7.4 
6.8 
6.4 
6.3 

6.2 
6.0 
6.0 
5.9 
6.7 

5.7 
5.6 
6.9 
18.2 
13.7 


15.0 
12.8 
12.1 
11.4 
15.5 

9.2 
11.0 
9.2 

8.5 
8.2 

7.8 
7.8 
9.9 
7.8 
7.5 

7.4 
7.0 
7.0 
6.9 
6.9 

7.0 
7.0 
7.0 
7.2 
7.2 

7.0 
6.9 
6.9 
6.9 
6.9 
6.8 


6.8 
6.8 
6.8 
6.8 
6.8 

6.9 
6.8 
6.8 
6.8 
6.8 

6.8 
15.5 
12.8 
8.9 
9.6 

13.2 
11.0 
9.0 

8.7 
8.4 

8.4 
8.2 
8.2 
7.8 
7.4 

7.4 

7.4 
7.2 
7.2 
7.2 
8.7 


7.8 
7.7 
7.7 
7.5 
7.2 

6.9 
6.6 
6.6 
6.6 
6.6 

6.6 
6.6 
6.4 
6.4 
6.3 

6.6 
8.2 
12.4 
8.9 

7.5 

7.2 
7.0 
7.5 
7.4 
7.0 

6.9 
6.9 
6.8 
6.6 
6.4 


5.9 

5.7 
5.7 
5.7 
5.7 

13.7 
8.0 
12.8 

7.8 
7.2 

■ 6.9 
6.4 
11.0 
14.2 

7.8 

8.0 
6.8 
6.6 
6.4 
5.9 

5.7 
5.6 
5.6 
5.6 
9.9 

5.9 
5.9 
5.9 
5.7 
5.7 
5.7 


5.4 
5.4 
15.0 
12.8 
8.0 

8.0 
6.3 
16.0 
16.4 
14.6 

14.6 
13.7 
12.8 
12.4 
12.3 

13.2 
15.0 
15.0 

"'l'.h' 

11.9 
11.6 
11.0 
13.2 
15,5 

15.5 
13.7 
13.3 
12.8 
11.9 


10.8 


2 


10.5 


3 


9.9 


4 


16.4 


5 


15.5 


6 


14.6 


7 


13.2 


8 


12.1 


9 


11.4 


10 


10.1 


11 


8.9 


12 


8.4 


13 


8.0 


14 


8.4 


15 


7.8 


16 


7.8 


17 


7.8 


18 


13.7 


19 


11.4 


20 


8.0 


21 


7.8 


22 


7.5 


23 


7.2 


24 


7.2 


25 


7.0 


26 


7.0 


27 


6.9 


28 


6.8 


29 


6.6 


30 


6.4 


31 


6.4 







Note.— No discharge Nov. 19. 



ISLAND OF MAUI. 
Monthly discharge of Kauaula ditch near Lahaina, Maui, for 1913. 



127 



Month. 



Dischaxge in second-feet. 



Maximiani. Minimum. Mean 



Rxm-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November^ 

December 

The year 



14.6 
15.5 
12.8 
18.2 
15.5 
18.2 
15.5 
15.5 
12.4 
14.2 
16.4 
16.4 



6.0 
5.6 
4.9 
4.6 
6.4 
5.6 
6.8 
6.8 
6.3 
5.6 
4.6 
6.4 



7.88 
7.45 
6.27 

11.2 
9.47 
7.61 
8.57 
8.29 
7.23 
7.27 

11.7 
9.40 



485 
414 
386 
666 
582 
453 
527 
510 
430 
447 
696 
578 



IS. 2 



8.53 



6,170 



a Ditch was dry Nov. 19. Mean is for 29 days. 

LAIINIUPOKO STREAM NEAR LAHAINA, MAUI. 

Location. — ^About 175 feet above Pioneer Mill Co.'s ditch intake, 1 mile above storage 

reservoir, and about b\ miles southeast of Lahaina. 
Records available. — July 25, 1911, to December 31, 1913. 
Gage. — ^Vertical staff. 
Control. — ^Probably shifting. 
Discharge measurements. — ^Made by wading. 
Diversions. — None above station. 
Accuracy. — Records poor. 
Cooperation. — Station maintained in cooperation with Pioneer Mill Co. 



Discharge measurements of Launiupoko Stream near Lahaina, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr. 17 


Feet. 
0.84 
.45 


Sec.-ft. 
6.05 


Aug. 20 


.94 






Monthly discharge of Launiupoho Stream near Lahaina, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. 



Minimum. 



Mean. 



Run-off 
(total ui 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

Jime 

July 

August 

September 

October 

November 

December 

The year 



5.5 
3.9 
1.4 

12 

25 
2.8 
2.0 
5.5 
1.5 
3.6 
6.9 
6.7 



0.8 



1.11 
1.16 

.83 
2.86 
2.99 
1.02 

.92 
1.14 

.82 
1.06 
2.12 
1.08 



68.2 
64.4 
51.0 

170 

184 
60.7 
56.6 
70.1 
48.8 
65.2 

126 
66.4 



1.43 



1,030 



128 



WATER EESOURCES OP HAWAII, 1913. 



OLOWALU STREAM NEAR GLOW ALU, MAUI. 

Location. — About 600 feet above Olowalu Sugar Co.'s power house, about 1 mile 

north of Olowalu. 
Record available. — April 26 to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Fairly permanent. 

Discharge measurements. — Made from footbridge or by wading. 
Diversions. — Water for power house diverted about 1| miles above gage; measured 

in tailrace called Olowalu ditch No. 1. 
Accuracy. — Records fair. 
Cooperation. — Station maintained in cooperation with Olowalu Sugar Co. 

Discharge measurements of Olowalu Stream near Olowalu, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 



Apr. 26 . 
May 15. 



height. 



Feet. 
0.83 
1.77 



Dis- 
charge. 



Sec.-ft. 
3.44 
55.8 



Date. 



Aug. 20. 



height. 



Feet. 
0.50 



Dis- 
charge. 



Sec.-ft. 
0.10 



Daily discharge, in second-feet, of Olowalu Stream near Olowalu, Maui, for 1913. 



Day. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec, 


1 




0.4 

1.6 

.4 

.4 

.2 


0.4 
.3 

2.6 
.4 
.2 


21 

11 

25 
11 
1.9 

7.6 
2.9 
2.4 
1.9 
1.9 

.3 




0.2 
.3 






1 2 


2 








.4 


3 






32 
18 
6.3 

.1 


3 


4 










84 


5 










34 


6 










29 


7 




.2 


.3 

8.0 

.3 

4.0 

.2 








19 


8 










42 
102 
60 

35 
29 
28 
15 
2.7 

.3 

5.3 
16 
40 
38 

7.6 

2.4 

.4 

1.9 

28 

50 

18 
7.0 
2.3 
4.5 


12 


9 












10 


10 












7 6 


11 












6 6 


12 




46 
37 
134 
86 

36 
24 
21 
16 
13 

11 
9.0 
5.3 
7.0 

69 

1.2 

'167"" 

5.3 

1.8 

.2 


28 
.5 
2.6 
7.3 

11 

18 
4.5 
5.6 

77 

13 

39 
1.1 
.2 
.2 

.2 
.2 
.2 
.2 
.2 
1.0 






5 6 


13 




7.0 
7.0 
2.6 

.4 
.8 
.2 
2.4 
.2 


18 




1.6 
.1 


5.0 


14 




5.6 


15 




.9 


16 








.2 


17 








1 


18 




4.0 




12 


19 




3 


20 








.2 


21 








.1 


22 










7.0 

1.1 

.2 




23 










24 










25 










26 


2.9 
5.1 
1.6 
1.1 
.6 












27 


5.6 
5.9 
126 
11 










28 








29 








30 








31 

























Note.— No discharge for days for which figures are not given; water diverted above station at power 
house. 



ISLAND OF MAUI. 129 

Monthly discharge of Olowalu Stream near Olowalu, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



April 27-30 . 

May , 

Jime 

July 

August 

September. 

October 

November. . 
December.. 



5.1 
134 
126 
25 
77 
4.0 
7.0 
102 
84 



(a) 
(a) 
(a) 
(a) 
(a) 
(a) 
(a) 
(a) 



0.6 



2.26 
20.4 

6:19 

3.38 

6.77 

.15 

.32 

19.7 

7.55 



22.4 
1,250 
368 



19. 
1,170 

464 



The period . 



3,930 



o Stream dry. 

OLOWALU DITCH NO. 1 NEAR OLOWALU, MAUI. 

Location.— One mile above Olowalu, near Olowalu plantation power house, and about 

7 miles east of Lahaina. 
Records available. — August 12, 1911, to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 
Discharge measurements. — Made in flume. 
Accuracy. — Records good. 
Cooperation. — Station maintained in cooperation with Olowalu Sugar Co. 

Discharge measurements of Olowalu ditch No. 1 near Olowalu, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 



Gage 
height. 



Dis- 
charge. 



Apr. 16.. 
Aug. 20. 



Feet. 
0.38 



Sec.-ft. 
5.31 
8.04 



97764°— wsp 373—15- 



130 WATER RESOURCES OF HAWAH^ 1913. 

Daily discharge, in second-feet, ofOlowalu ditch No. 1 near Olowalu, Maui, for 1913. 



Day. 



Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


4.5 


4.5 


5.5 


6.0 


8.0 


4.5 


10 


5.0 


4.5 


3.9 


3.9 


4.5 


4.0 


5.5 


5.5 


. 8.5 


4.5 


10 


4.5 


4.5 


4.0 


4.0 


4.5 


4.0 


5.0 


5.0 


8.0 


5.5 


10 


4.5 


4.5 


4.0 


4.8 


4.0 


4.0 


4.5 


4.0 


8.0 


4.5 


8.5 


4.5 


4.5 


4.0 


5.5 


4.5 


4.0 


4.5 


4.0 


7.0 


4.5 


8.0 


4.5 


4.5 


4.0 


4.8 


4.5 


6.0 


4.5 


4.0 


6.0 


4.5 


7.5 


4.5 


4.5 


4.9 


4.8 


4.5 


8.0 


4.5 


4.0 


6.0 


4.5 


5.5 


4.5 


4.5 


4.0 


4.8 


4.5 


5.5 


4.5 


4.0 


5.5 


4.5 


5.5 


4.5 


4.0 


5.5 


8.0 


4.5 


4.0 


4.5 


4.0 


5.5 


4.5 


5.5 


4.5 


4.0 


4.3 


4.8 


4.5 


4.5 


4.0 


4.5 


5.5 


4.5 


5.5 


5.0 


4.0 


4.0 


3.8 


4.0 


5.0 


4.0 


9.5 


6.0 


4.0 


5.5 


4.5 


4.0 


3.9 


3.8 


4.0 


4.5 


4.0 


4.5 


5.5 


4.5 


7.0 


6.0 


4.0 


3.8 


3.0 


10 


4.5 


4.0 


4.5 


10 


5.5 


8.0 


4.5 


4.0 


6.5 


4.0 


7.5 


4.5 


6.0 


9.5 


8.0 


4.5 


8.0 


8.0 


4.0 


8.0 


4.0 


4.5 


4.5 


6.0 


11 


4.5 


5.0 


7.0 


8.0 


4.0 


5.2 


6.0 


5.0 


4.5 


7.5 


6.0 


7.0 


4.5 


7.0 


8.0 


4.0 


4.3 


9.5 


4.5 


4.5 


7.5 


4.5 


10 


4.5 


5.5 


7.5 


5.0 


4.0 


11 


4.0 


5.5 


5.5 


4.0 


9.5 


4.0 


5.5 


8.0 


8.0 


4.0 


11 


4.0 


8.0 


5.0 


6.0 


9.0 


4.0 


6.0 


8.0 


6.0 


4.0 


11 


3.5 


7.0 


4.5 


11 


6.0 


4.0 


7.5 


7.5 


5.0 


3.9 


9.5 


3.0 


5.5 


5.0 


11 


5.5 


4.0 


7.0 


7.0 


4.5 


3.8 


11 


4.5 


4.5 


7.5 


7.5 


5.5 


4.0 


5.5 


7.0 


4.5 


4.0 


11 


4.5 


4.0 


6.0 


5.0 


5.5 


4.5 


6.0 


6.0 


4.5 


6.8 


11 


4.5 


3.5 


5.0 


6.0 


5.5 


5.5 


6.0 


5.5 


4.0 


7.5 


11 


4.5 


7.0 


5.0 


8.0 


5.5 


5.5 


5.5 


5.5 


4.0 


6.0 


13 


4.0 


5.0 


4.5 


8.5 


5.5 


5.5 


5.5 


5.0 


4.0 


5.5 


13 


4.0 


4.0 


5.0 


8.5 


5.0 


8.0 


5.5 


5.0 


4.0 


5.2 


12 


4.0 


4.5 


6.0 


8.5 


5.5 


8.5 


5.5 


4.5 


4.0 


5.2 


11 


4.0 




4.5 


8.0 


5.5 


9.5 


5.0 


4.5 


4.0 


5.2 


11 


4.0 




5.0 


8.0 


5.0 


9.5 


4.5 


4.5 


4.0 


4.8 


11 


4.5 




8.0 




5.0 




4.5 


7.0 




5.5 





Dec. 



1 
2 
3 

4 
5 

6 
7 
8 
9 
10 

11 
12 
13 
14 
15 

16 
17 
18. 
19. 
20. 

21. 
22. 
23. 
24. 
25. 

26. 
27. 
28. 
29. 
30. 
31. 



11 
11 
11 
15 
13 

11 

11 
9.5 
7.5 
6.8 

5.5 
5.5 
4.9 
5.2 
5.8 

7.5 
8.0 
11 
8.0 
8.0 

8.0 
6.8 
6.8 
6.0 
5.5 

5.5 
5.5 
5.5 
5.5 
5.4 
5.2 



Monthly discharge ofOlowalu ditch No. 1 near Olowalu, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean. 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



10 
8.0 
8.0 

11 

10 
9.5 

10 
8.0 
8.0 
8.0 

13 

15 



15 



3.0 
3.5 
4.0 
4.0 
4.5 
4.0 
4.5 
4.5 
4.0 
3.8 
3.0 
4.9 



4.55 
4.96 
5.24 
6.48 
6.53 
5.17 
6.56 
5.73 
4.43 
4.85 
7.90 
7.80 



5.8 



280 
275 
322 
386 
402 
308 
403 
352 
264 
298 
470 



4,240 



ISLAND OF MAUI. 



131 



WAIKAPU STREAM NEAR WAIKAPU, MAUI. 

Location. — One and one-half miles west of Waikapu and about 5 miles southwest of 

Wailuku; 500 feet below intake of Palolo ditch. 
Records available. — December 1, 1910, to December 31, 1913. 
Gage. — Inclined staff. 
Control. — Shifting. 

Discharge measurements. — ^Made by wading. 
Diversions. — Most of the normal flow diverted into the South Side Waikapu and the 

Palolo ditches. 
Accuracy. — Records poor on account of insuflficient rating. 

The following discharge measurement was made by C. T. Bailey: 
May 27, 1913: Gage height, 0.34 foot; discharge, 0.20 second-foot. 

Monthly discharge of Waikapu Stream near Waikapu, Maui, for 1913. 



Month. 



Discharge in second-feet. 


Run-oS 
(total in 








Maximum. 


Minimum. 


Mean. 


acre-feet). 


0.3 


0.2 


0.20 


12.3 


50 


.2 


4.70 


261 


.3 


.2 


.21 


12.9 


81 


.2 


10.3 


613 


181 


.2 


8.94 


550 


27 


.2 


1.60 


95.0 


6.0 


.2 


.53 


32.6 


25 


.2 


3.05 


188 


.8 


.2 


.22 


13.1 


1.0 


.2 


.25 


15.4 


149 


.2 


9.30 


553 


178 


.2 


13.6 


836 


181 


.2 


4.40 


3,180 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



SOUTH SIDE WAIKAPU DITCH NEAR WAIKAPU, MAUI. 

Location. — One mile below ditch intake, 1| miles west of Waikapu, and about 5^ 

miles southwest of Wailuku. 
Records available. — November 21, 1910, to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Fairly permanent. 

Discharge measurements. — Made from plank over ditch about 400 feet below gage. 
Accuracy. — Records good. 

Discharge measurements of South Side Waikapu ditch near Waikapu, Maui, in 1913. 
[C. T. Bailey, hydrographer.] 



Date. 



Apr. 9. 
May 27. 



Gage 
height. 



Feet. 
0.57 
.73 



Dis- 
charge. 



■..-ft. 
3.47 
6.29 



Date. 



July 29. 
Nov. 5. 



Gage 
height. 



Feet. 
0.00 
.66 



Dis- 
charge. 



Scc.-ft. 
3. 78 
4.86 



132 WATER EESOUECES OF HAWAII^ 1913. 

Daily discharge, in second-feet, of South Side Waikapu ditch near WaiJcapu, Maui, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1. 


3.5 
4.1 
4.5 
3.9 
3.5 

3.1 
3.1 
2.9 

2.8 
2.8 

2.8 
2.8 
4.1 
4.5 
4.5 

3.5 
3.1 

2.8 
2.8 
2.8 

2.8 

2.8 
2.8 
2.8 
2.8 

2.8 
2.8 
2.8 
2.8 
2.8 
3.5 


2.8 
2.8 
2.8 
2.8 
2.8 

10.1 
5.9 

11.0 
7.1 
5.0 

5.1 
4.2 
3.5 
3.5 
3.5 

3.6 
3.5 
10.4 
6.5 
9.0 

6.5 
5.7 
5.6 
4.2 
7.6 

7.3 

5.7 
5.6 


4.8 
4.2 
4.2 
4.1 
3.9 

3.9 
4.2 
4.2 
3.9 
3.9 

3.9 
3.9 
3.9 
3.9 

4.4 

4.5 
5.1 
4.4 
4.1 
3.6 

3.5 
5.1 
4.2 
3.9 
3.9 

3.6 
3.5 
5.0 
4.1 
3.5 
5.0 


4.2 
4.1 
3.9 
3.6 
3.5 

*3.5 
3.5 
3.5 
3.5 
3.9 

8.3 
11.0 
11.3 
10.6 
13.7 

12.2 
11.9 
10.8 
8.7 
7.3 

8.5 
8.2 
7.8 
7.6 
7.3 

6.2 
6.3 
5.7 
5.7 
5.9 


5.7 
8.8 
6.8 
7.0 
7.6 

8.2 
8.5 
8.3 
8.5 
8.3 

8.2 
12.6 
10.6 
11.0 

S.O 

6.7 
8.7 
9.0 
9.0 
7.8 

7.1 
7.0 
6.5 
6.0 
6.0 

8.8 
6.8 
6.3 
6.0 
5.9 
5.7 


6.0 
6.0 
6.2 
6.0 
6.0 

6.0 
5.9 
6.3 
6.0 

6.7 

6.3 
8.0 
6.8 
6.0 
7.6 

6.2 
5.7 
5.6 
5.1 

4.5 

4.2 
4.1 
4.1 
4.1 

4.2 

3.9 
11.2 
9.4 
8.8 
9.4 


9.0 
9.4 
7.5 
6.7 
5.7 

5.9 
6.7 
5.7 
5.1 
4.5 

4.2 
7.0 
6.2 
5.7 

5.4 

5.2 
5.2 
5.2 
5.2 

5.4 

5.1 
4.5 
5.1 
5.1 
5.7 

4.8 
4.5 
3.9 
3.9 
4.5 
4.2 


4.2 
4.8 
4.2 
4.2 
4.2 

4.1 
3.9 
3.8 
3.9 

7.0 

4.5 
10.8 
8.7 
6.0 
6.3 

10.1 
8.3 
6.2 
5.1 

5.4 

5.7 
4.8 
5.1 
5.1 
5.4 

5.1 
6.2 
6.0 
5.4 
5.4 
9.9 


6.0 
6.0 

5.7 
5.4 
5.4 

5.0 
5.7 
4.2 
4.2 
3.9 

4.4 
3.9 
4.6 
3.9 
3.8 

4.2 
4.4 
7.6 
5.1 
4.2 

4.4 
3.9 
3.9 
3.6 
3.5 

3.5 
3.5 
3.5 
3.4 

3.4 


3.4 
3.4 
3.1 
3.4 
3.1 

3.6 
3.2 
4.4 
3.4 
3.1 

2.8 
2.8 
3.9 
2.9 
3.1 

2.9 
2.9 

2.8 
2.8 
2.8 

2.7 
2.7 
2.7 
2.7 

2.8 

2.7 
2.7 
2.8 
3.0 
3.1 
2.9 


2.9 
3.1 
10.4 
9.0 

5.4 

4.2 
3.8 
17.3 
15.7 
10.8 

8.3 
7.1 
7.1 
6.0 
5.2 

6.3 
7.3 
11.2 
13.2 
8.3 

7.0 
5.7 
6.3 
8.3 
9.4 

12.6 
8.3 
6.8 
5.7 
8.3 


6 


2 


6.0 


3 


5.6 


4. 


14.5 


5 


8.5 


6 


6.0 


7 


4.0 


8 


4.2 


9 


.6 


10 


7.3 


11 


6.7 


12 


6.2 


13 


5.8 




5.4 


15 


4.5 


16 


4.2 


17 


4.6 


18 


5.1 


19 


4.2 


20. . . .. 


3.9 


21 


3.8 


22 


2.8 


23 


2.8 


24 


2.8 


25 


2.8 


26 


2.8 


27 


2.7 


28 


2.7 


29 


2.7 


30 


2.5 


31 


2.5 







Monthly discharge of South Side Waikapu ditch near Waikapu, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean- 



Run-ofl 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



4.5 
11.0 

6.1 
13.7 
12.6 
11.2 

9.4 
10.8 

7.6 

4.4 
17.3 
14.5 



17.3 



2.8 

2.8 

3. 

3.5 

5.7 

3.9 

3.9 

3.8 

3.4 

2.7 

2.9 



3.21 
5.50 
4.14 
7.07 
7.79 
6.21 
5.55 
5.80 
4.47 
3.05 
8.03 
4.67 



5.45 



197 
305 
255 
421 
479 
370 
341 
357 
266 
187 
478 
287 



3,940 



PALOLO DITCH NEAR WAIKAPU, MAUI. 



Location. — Two hundred feet below ditch intake, IJ miles west of Waikapu, and 

about 5^ miles southwest of Wailuku. 
Records available. — November 21, 1910, to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 
Discharge measurements. — Made by wading. 
Accuracy. — Records good. 



ISLAND OF MAUI. 



133 



Discharge measurements of Palolo ditch near Waihapu, Maui, in 191S. 
[C. T. Bailey, hydrographer.] 



Date. 



Gage 
height. 



Apr. 9. 
May 27. 



Feet. 
0.81 



Dis- 



Sec.-ft. 
2.61 
2.83 



Date. 



July 29. 



Gage 
height. 



Feet. 
0.80 



Dis- 



Sec.-ft. 
2.24 



Daily discharge, in second-feet, of Palolo ditch near Waihapu, Maui, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 

2.. 


2.8 
2.9 
3.1 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.1 
3.4 
3.2 

3.0 
3.0 
3.0 

2.9 
2.8 

2.9 

2.8 
2.8 
2.8 
2.8 

2.6 
2.6 
2.6 
2.6 
2.6 
2.8 


2.8 
2.6 
2.6 
2.6 
2.6 

4.3 
3.5 

4.5 
3.4 

2.8 

2.8 
2.6 
2.6 
2.6 
2.5 

2.6 
2.9 
3.4 
3.4 

3.4 

3.2 
3.1 
3.0 

2.8 
3.4 

3.2 
3.0 

2.8 


2.8 
2.8 
2.6 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 

2.5 

2.5 
2.5 
2.5 
2.5 

2.8 

2.8 
2.6 
2.5 
2.5 
2.5 

2.5 
2.8 
2.6 
2.5 
2.5 

2.5 
2.5 
2.8 
2.5 
2.5 
2.5 


2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.6 

4.8 
3.9 
3.8 
3.8 
3.9 

3.9 
3.9 
3.8 
3.4 
3.1 

3.4 
3.1 
3.0 
2.6 

2.6 

2.5 
2.5 

2.4 
2.4 
2.4 


2.4 
3.1 
2.8 
2.6 
2.5 

2.4 
2.5 
2.4 
2.4 
2.4 

2.4 
3.5 
3.1 
3.6 
3.6 

3.4 
3.3 
3.2 
3.3 

3.0 

2.9 
2.9 
2.6 
2.6 
2.6 

3.1 

2.8 
2.6 
2.5 
2.5 
2.5 


2.6 
2.7 
2.8 
2.6 
2.6 

2.6 
2.6 
2.6 
3.0 
3.3 

3.0 
3.1 
2.9 
2.7 
3.0 

2.9 
2.6 
2.5 
2.5 

2.5 

2.5 
2.5 
2.5 
2.4 
2.5 

2.4 
3.8 
3.6 
3.3 
3.4 


3.2 
3.4 
3.1 
2.9 
2.6 

2.8 
3.0 
2.6 
2.6 
2.6 

2.5 
3.4 
3.0 
2.8 
2.6 

2.5 
2.5 
2.5 
2.5 
2.7 

2.5 
2.5 
2.6 
2.5 
2.6 

2.6 
2.5 
2.5 
2.5 
2.6 
2.5 


2.4 
2.6 
2.5 
2.5 
2.5 

2.4 
2.4 
2.4 
2.4 
3.7 

2.6 
3.9 
3.4 
2.6 
2.7 

4.2 
3.5 
2.8 
2.6 
2.6 

2.6 
2.5 
2.6 
2.6 
2.6 

2.5 
2.8 
2.6 
2.5 
2.5 
4.0 


2.6 
2.5 
2.6 
2.5 
2.5 

2.5 
2.8 
2.5 
2.5 

2.4 

2.5 
2.4 
2.6 
2.4 
2.4 

2.5 
2.5 
2.9 
2.6 

2.5 

2.5 

2.4 
2.4 
2.4 
2.4 

2.4 
2.4 
2.4 
2.4 
2.4 


2.4 
2.4 

2.4 
2.4 
2.4 

2.5 
2.4 
2.5 
2.4 
2.4 

2.4 
2.4 
2.5 
2.6 
2.6 

2.5 

2.4 
2.4 
2.4 
2.4 

2.4 
2.4 
2.4 
2.4 
2.5 

2.4 
2.4 
2.9 
3.3 
2.5 
2.4 


2.4 
2.5 
2.5 
2.8 
2.5 

2.4 
2.4 
5.2 
3.8 
3.0 

2.9 

2.8 
2.8 
2.6 
2.5 

2.6 
2.9 
3.1 
3.3 

2.9 

2.6 
2.6 
2.6 
2.6 

2.8 

3.5 
2.8 
2.5 
2.5 
2.8 


2.6 
2.6 


3 


2.5 


4 

5 


3.5 

2.8 


6 

7 

8 


2.9 
6.0 
5.9 


9 


2.7 


10 


3.4 


11 

12 

13 


1.4 
2.3 
2.0 


14 


2.2 


15 


2.0 


16 

17 

18 

19 


2.0 
2.0 
2.1 
2.3 


20 


2.4 


21 

22.. 


2.4 
2.5 


23 


2.5 


24 


2.5 


25 


2.5 


26 

27 


2.5 
2.5 


28 


2.5 


29 


2.6 


30 


2.6 


31.. 


2.6 







Monthly discharge of Palolo ditch near Wailulcu, Maui, for 1913. 



Month. 


Discharge in second-feet. 


Run-off 
(total in 
acre-feet). 


Accu- 


Maximum. 


Minimum. 


Mean. 


racy. 




3.4 
4.5 
2.8 
4.8 
3.6 
3.8 
3.4 
4.2 
2.9 
3.3 
5.2 
6.0 


2.6 
2.5 
2.5 
2.4 
2.4 
2.4 
2.5 
2.4 
2.4 
2.4 
2.4 
1.4 


2.91 
3.04 
2.57 
3.01 
2.81 
2.79 
2.70 
2.78 
2.49 
2.48 
2.87 
2.69 


179 
169 
158 
179 
173 
166 
166 
171 
148 
152 
171 
165 


A. 


Fehruary 


A. 




A. 


April 


A. 




A. 


June 


A. 


July 


A. 


August 


A. 


September 


A. 


October 


A. 


November 


A. 




A. 






The year 


6.0 


1.4 


2.76 


2,000 









134 WATEK EESOUECES OF HAWAII, 1913. 

HAIPUAENA STREAM NEAR HUELO, MAUI (OLD STATION). 

Location. — About 7 miles by trail east of Huelo post ofl&ce, about 400 feet below point 

where Spreckels ditch joins the stream. 
Records available. — December 18, 1910, to September 30, 1913. 
Gage. — Vertical staff. 
Control. — Shifting. 

Discharge measurements. — Made by wading. 

Diversions. — Combined flow of stream and Spreckels ditch was measured. 
Accuracy. — Poor . 
Cooperation. — Station is maintained in cooperation with East Maui Ditch Co. 

Monthly discharge of Haipuaena Stream near Huelo, Maui, for 1913. 
[Old station.] 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean. 



Run-ofi 
(total in 
acre-feet). 



Accu- 
racy. 



January.. - 
February. . 

March 

April 

May 

June 

July 

August 

September. 



100 
65 
136 

79 
72 
56 



9.0 
8.5 
4.5 

14 

14 

10 
7.0 
5.5 
8.0 



27.7 
20.6 
19.4 
46.8 
23.8 
24.6 
24.7 
25.2 
17.8 



1,700 
1,140 
1,190 
2,780 
1,460 
1,460 
1,520 
1,550 
1,060 



The period . 



13,900 



HAIPUAENA STREAM NEAR HUELO, MAUI (nEW STATION). 

Location. — Seven miles east of Huelo post office, 200 feet above Spreckels ditch 

inflow. 
Records available. — October 19 to December 31, 1913. 
Gage. — Friez water-stage recorder. 
Control. — Probably permanent. 

Discharge measurements.— Made from footbridge or by wading. 
Diversions.— None above station. 
Accuracy. — Records very good. 

Discharge measurements of IIaipv£no Stream near Huelo, Maui, in 1913. 

[New station.] 



Date. 


Made by— 


Gage 
height. 


Discharge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Oct. 27... 
Nov. 4. 


E. 0. Christiansen, 
do 


Feet. 
0.42 
1.38 
2.46 


Sec.-ft. 
2.77 
33.6 
141 


Nov. 12. 
Nov. 13. 


C. T. Bailey 

do 


Feet. 
2.10 
1.01 
2.72 


Sec.-ft. 
81.0 
14.9 


Nov. 8. . . 


. .do 


Nov. 18. 


.do 


161 













ISLAND OF MATJI. 185 

Daily discharge, in second-feet, of Eaipuaena Stream near Huelo, Maui, for 1913. 



Day. 


Oct. 


Nov. 


Dec. 


Day. 


Oct. 


Nov. 


Dec. 


Day. 


Oct. 


Nov. 


Dec. 


1 




4 
15 
71 
32 
10 

7 

14 

100 

150 

62 


7 
7 
11 

174 
85 

61 
17 
20 
13 
9 


11 




28 
68 
19 
11 
14 

28 
41 
138 
136 
52 


8 
8 
14 
37 
23 

12 
18 
33 
11 

8 


21 


4 
4 
3 
3 
3 

3 
3 
3 
3 
3 
3 


39 
27 
15 
83 
31 

42 
21 
12 
10 

8 


7 


2 




12 




22 


6 


3 




13 




23 


6 


4 




14 




24 


5 


5 




15 




25 


5 


6 




16 




26 


5 


7 




17 




27 


4 


8 




18 




28 


4 


9 




19 

20 


4 
4 


29 


4 


10 




30 


4 








31 


4 









Note. — Discharge interpolated Nov. 16 and 22. 

Monthly discharge of Haipuaena Streain near Huelo, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Mtoimuni. Mean. 



Run-ofi 
(total in. 
acre-feet). 



Accu- 
racy. 



October 19-31 

November 

December 



4 
150 
174 



3.3 

42.6 
20.3 



85 
2,530 
1,250 



PUOHAKAMOA STREAM NEAR HUELO, MAUI (OLD STATION). 

Location. — About 6 miles by trail east of Hueio post office, immediately below point 

wliere Spreckels ditch falls into stream . 
Records available. — December 18, 1910, to June 18, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 
Discharge measurements. — Made by wading. 

Diversions. — ^Measurement made of combined flow of stream and Spreckels ditch. 
Accuracy. — Records poor. 
Cooperation. — Station maintained in cooperation with East Maui Ditch Co. 

Monthly discharge of Puohakamoa Stream near Huelo, Maui, for 1913. 
[Old station.] 



January.. 
February. 

March 

AprU 

May 

June 1-18. 



Month. 



The period. 



Discharge in second-feet. 



Maximum. Miaimum 



106 
169 
489 
209 
177 
100 



Mean. 



38.7 
35.0 
39.1 
77.7 
36.9 
34.3 



Run-off 
(total in 
acre-feet). 



2,380 
1,940 
2,400 
4,620 
2,270 
1,220 

14,800 



Accu- 
racy. 



136 



WATER EESOUECES OF HAWAII^ 1913. 



PUOHAKAMOA STREAM NEAR HUELO, MAUI (nEW STATION). 

Location. — Seven miles east of Huelo post office, 150 feet above Spreckels ditcli trail. 

Records available. — June 13 to December 31, 1913. 

Gage. — Barrett & Lawrence water-stage recorder. 

Control. — Fairly permanent. 

Discharge measurements. — Made from trail bridge or by wading. 

Diversions.— Kula pipe line diverts water at an elevation of 4,300 feet. 

Accuracy.— Low-water records good; records for high stages only approximate. 

Discharge measurements of Puohahamoa Stream near Huelo, Maui, in 1913. 

[New station.] 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


June 19.. 
Oct. 27... 


C. T.Bailey 

E. 0. Christiansen. . 


Feet. 
1.26 
.94 


Sec.-ft. 
7.70 
6.49 


Nov. 12 . 
Nov. 13. 


C.T.Bailey 

do 


Feet. 
3.18 
2.40 


Sec.-ft. 
130 
37.6 



a Discharge is the diflerence between measured discharge of Spreckels ditch above and below Puoha- 
kamoa Stream. 

Daily discharge, in second-feet, of Puohahamoa Stream near Huelo, Maui, for 1913. 

[New station.] 



Day. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 




11 

43 
21 
20 
38 

52 
21 
16 
12 
10 

10 
11 
11 
U 
10 

9.0 

8.7 
8.0 
7.6 

7.8 

8.1 
7.4 
7.2 
7.2 
7.2 

7.2 
7.2 
7.0 
6.8 
6.6 
6.5 


6.2 
6.2 
6.1 
6.8 
5.8 

7.1 
40 
8.4 
7.4 
7.4 

74 
76 
17 
15 
15 

12 

9.7 
8.6 
8.1 
7.8 

7.6 
7.2 
7.0 
7.0 
6.8 

6.8 
6.9 
7.3 
7.0 
16 
8.8 




'"n" 

24 
22 
10 

8.7 
7.8 
7.4 
7.0 
6.7 

6.5 
6.5 
6.5 
6.4 
6.1 


6.5 
6.0 

5.8 
6.2 
6.2 

15 
27 
37 
12 
8.5 

8.2 
7.6 

17 

11 
9.1 

8.0 

7.4 
7.2 
7.0 
6.8 

6.9 
6.6 
6.4 
6.3 
6.2 

6.2 
6.2 
6.2 
6.1 
6.0 
6.0 


6.6 

15 

128 

68 

16 

11 

13 
226 
305 
153 

79 
129 
47 
22 
20 

66 
100 
267 
233 

92 

68 
28 
31 
173 
91 

114 
57 
26 
21 
16 


14 


2 .... 




12 


3 




16 


4 




366 


5 




178 


6 




147 


7 




55 


8 . 




61 


9 




34 


10 




21 


11 




17 


12 .J 




16 


13 

14 


53 
24 
16 

10 

8.7 
8.1 
7.8 
7.4 

7.1 
7.0 
7.0 
7.0 
7.0 

7.0 
7.0 
7.0 
7 
9.5 


15 
79 


15 ; . . . 


62 


16 

17 


26 
37 


18 


91 


19 


23 


20 


17 


21 


14 


22 


13 


23 


12 


24 


11 


25 


10 


26 


9 7 


27 


9.3 


28 


8.9 


29 


8.7 


30 


8.1 


31.... 


7.8 









Note. — No record Sept. 1-16; recording instrument out of order. 



ISLAND OF MAUI. 



137 



Monthly discharge of Puohakamoa Stream near Huelo, Maui, for 1913. 
[New station.] 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Run-off 

(total in 
acre-feet). 



Accu- 
racy. 



Juneia-30 

July 

August 

September 17-30. 

October 

November 

December 



53 
52 
76 
24 
37 
305 
366 



7.0 
6.5 
5.8 
6.1 

5.8 
6.6 

7.8 



11.5 
13.4 
13.9 
9.90 
9.31 
87.4 
45.1 



The period. 



410 
824 
855 
275 
572 
5,200 
2,770 



10,900 



ALO STREAM NEAR HUELO, MAUI. 

Location. — About 5 miles by trail east of Huelo post office, immediately below bridge 

where old Spreckels ditch, trail crosses stream. 
Records available. — December 18, 1910, to December 31, 1913. 
Gage. — Vertical staff. 

Control. — Affected by backwater from inflow of Spreckels ditch. 
Discharge raeasirrements. — Made by wading. 
Diversions. — None above station. 
Accuracy. — Records poor. 

Discharge measurements ofAlo Stream near Huelo, Maui, for 1913. 
[C. T. Bailey, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge. 


July 24... . 


Feet. 
1.48 
2.58 


Sec.-ft. 
1.45 
31.9 


Nov. 20 


Feet. 
2.11 


Sec.-ft. 
18.2 


Nov.18 







Monthly discharge of Alo Stream near Huelo, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 

(total in 

acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



24 
61 

7.8 
51 
28 

9.4 
21 
43 
11 
15 
97 
110 



.5 
1.7 
1.2 
1.2 

.7 
.5 
.7 
.4 
.7 
1.2 



4.80 
4.72 
2.65 
11.7 
3.56 
3.33 
3.75 
4.30 
2.04 
2.73 
22.8 
10.7 



110 



6.40 



295 
262 
164 
696 
219 
198 
231 
264 
121 
168 
1,360 
658 



4,640 



138 



WATEE EESOUECES OF HAWAII^ 1913. 



WAIKAMOI STREAM NEAR HUELO, MAUI. 

Location.— Five hundred feet above Spreckels ditch intake and 5 miles east of Huelo 

post office. 
Records available. — December 18, 1910, to December 31, 1913. 
Gage. — Friez water-stage recorder installed October 14, 1913, at new datum; staff 

gage December 18, 1910, to October 13, 1913, 
Control. — Probably permanent. 

Discharge measurements. — Made from footbridge or by wading. 
Diversions. — None above station. 
Accuracy. — Records good. 

- Discharge measurements of Waihamoi Stream near Huelo, Maui, for 1913. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


July 24. . . 
Oct. 27a.. 


C.T.Bailey 

E.G. Christiansen, 
do 


Feet. 
1.40 
.35 
1.49 


Sec.-ft. 
3.23 
2.15 
83.9 


Nov.8... 
Nov. 13.. 
Nov. 2.. 


E.O.Christiansen. 

C.T.Bailey 

do 


Feet. 
1.80 
1.03 
1.21 


Sec-ft. 
li>3 
26.2 
53.4 











a Water-stage recorder installed at new datum Oct. 14, 1913. 
Daily discharge, in second-feet, of Waihamoi Stream near Huelo, Maui, for 1913. 



Day. 



1 
2 
3 

4, 
5 

6 

7, 
8 
9 
10 

11 
12 
13 
14 
15 

16 
17 
18, 
19 
20 

21 
22 
23 
24 
25 

26 
27 
28 
29 
30 
31 



Jan. 



10 
8.4 
7.8 
7.0 
6.2 

5.7 
5.0 
8.8 
9.0 
11 

6.4 
7.8 

22 

18 

21 

14 
10 

8.4 
7.6 
6.4 

4.0 
6.0 
11 

4.9 
4.7 

4.4 
4.1 
3.8 
3.3 
3.1 
3.3 



Feb. 



4.0 
3.8 
3.0 
2.8 
3.6 

23 
9.2 
6.0 
4.1 
3.6 

3.0 

2.7 
2.4 
2.4 
2.2 

5.7 
3.6 

18 

24 
9.2 

8.0 
7.2 
6.0 
4.9 
4.4 

3.8 
3.3 
2.9 



Mar. 



2.6 
2.4 
2.2 
2.0 
1.8 

2.0 
3.3 
2.6 
4.1 
2.8 

1.9 
1.0 



5.0 
8.0 
5.0 
5.0 
3.6 

13 

14 
7.4 
5.7 
7.6 

5.8 
4.9 

11 
5.8 

28 

47 



Apr. 



21 

14 
8.4 
6.8 
6.4 

5.7 
5.0 
4.4 
6.0 

4.7 



60 
92 
43 
70 

54 
71 
33 
20 
15 

16 
13 
17 

17 
20 

12 

12 
9.6 
9.0 
7.2 



6.8 
6.0 
7.4 
6.8 
6.4 

5.0 
5.0 

7.8 
5.4 
4.7 

4.1 

5.7 
7.8 
6.8 
13 

12 
10 
9.4 



6.0 
5.0 
5.0 
6.0 
4.6 

13 
7.6 
7.2 
7.6 
6.4 
8.4 



June. 



6.5 
4.7 
4.7 
3.0 
6.0 

4.7 
4.6 
4.4 
6.2 
9.6 

6.6 
15 
15 
14 
12 

3.0 
6.2 

5.4 
5.0 
4.4 

3.8 
3.6 
3.3 
3.1 

5.4 

5.4 
8.8 

12 
8.2 

18 



July. 



25 
40 
14 
15 
18 

21 
10 
9.2 

7.4 
6.4 

6.0 
7.0 
11 

8.8 
6.8 

6.7 
4.9 
4.3 
3.8 
3.6 

5.7 
3.6 
3.3 
3.6 
3.3 

3.6 
3.3 
2.9 
,2.6 
2.5 
2.4 



Aug. 



2.2 
1.9 
2.0 
1.6 
1.4 

2.7 
4.6 
9.6 
5.4 
7.6 

6.8 
42 
16 
14 
31 

11 
9.2 
7.6 
6.8 
6.2 

5.7 
4.6 
3.8 
3.8 
3.1 

3.3 
6.4 
5.6 
3.8 
3.0 



Sept. 



5.7 
4.7 
4.4 
3.3 
2.8 

2.4 
2.7 
2.6 
2.6 
2.4 

2.0 
3.3 
3.0 
3.3 
3.0 

3.6 

7.8 
37 
17 
10 

7.2 

5.4 
4.1 
2.3 
1.4 

1.2 

1.2 
1.4 
1.2 



Oct. 



6.2 
5.2 
4.0 
4.2 
3.8 

4.0 
3.2 
2.8 
2.7 
2.5 

2.7 
2.7 
2.7 
2.3 
2.0 
2.1 



Nov. 



2. 
12 
163 
67 
16 

12 



250 
106 

36 
104 
30 
18 
19 

143 
108 
188 
163 

58 

35 
20 
22 

186 
55 

64 
36 
21 
17 
12 



Dec. 



11 
9.4 

12 
388 
170 

143 
24 
29 
18 
13 

11 
10 
9.4 
62 
36 

18 
24 
62 
16 
14 

12 

10 
9.4 
8.5 
7.9 

7.3 
6.8 
6.4 
6.0 
6.6 
5.4 



Note.— No record Oct. 1-14 and Nov. 7-8. 



ISLAND OF MAUI. 139 

Monthly discharge of Waihamoi Stream near Huelo, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean. 



Run-off 
(total in 



Accu- 
racy. 



January . . 
February. 

March 

April 



Time 

July 

August 

September 

October 15-31 

November 1-6, 9-30 
December 



The period . 



22 
24 
47 
92 
13 
18 
40 
42 
37 
7.6 
250 



3.1 
2.2 

.8 
4.4 
4.1 
3.0 
2.4 
1.4 

.9 
2.0 
2.8 
5.4 



8.16 
6.31 
6.71 
24.0 
7.25 
7.01 
8.54 
7.66 
5.00 
3.57 
70.1 
36.9 



502 

350 

413 

1,430 

446 

417 

525 

471 

298 

110 

3,890 

2,270 



11,100 



OOPUOLA STREAM NEAE HUELO, MAUI. 

Location. — About 2 miles by trail east of Huelo post office, about 400 feet above old 

Spreckels ditch crossing. 
Records available. — December 16, 1910, to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Fairly permanent. 
Discharge measurements. — Made by wading. 
Diversions. — None above station. 
Accuracy. — Records poor on account of only one reading daily. 

Discharge measurements ofOopuola Stream near Huelo, Maui, for 1913. 
[C. T. Bailey, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


JimelO 


Feet. 
1.01 
2.29 


Sec.-ft. 
0.04 


Nov. 12 


24.0 







140 WATER EESOUECES OF HAWAII, 1913. 

Daily discharge, in second-feet, of Oopuola Stream near Huelo, Maui, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 .. .. 


3.4 
5.0 
4.8 
3.4 
2.2 

.9 

.8 
12 
8.1 
12 

12 
41 
70 
30 

34 

3.9 
2.0 
5.0 
8.5 
12 

10 
1.4 


0.8 


0.8 

.8 
.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 

1.6 
2.3 
2.0 
1.1 
.9 

2.4 

16 

8.4 

.9 

1.2 

1.1 
.9 

2.5 
.9 

.8 
.7 


16 
15 
1.2 

8.1 
6.4 

3.6 
.9 
.9 

1.0 

.8 

80 
18 
18 
18 
21 

30 
34 
24 
22 
23 

24 
44 
16 
23 
30 

27 

16 
4.4 
3.9 
2.9 


1.6 
1.2 
1.3 
1.2 
1.1. 

1.1 
.9 

.8 
.8 
.9 

1.1 
1.2 
1.0 
1.0 
11 

6.4 
5.3 
4.0 
2.7 
1.4 

1.2 
1.1 
1.0 
1.6 
9.8 

18 
10 
.9 

.8 
.8 
.8 


0.8 
.8 
.8 

1.3 
.8 

.8 

.8 

1.2 

1.7 

2.2 

1.2 
3.1 
15 
1.4 
1.2 

1.0 
.9 

.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 

.9 
2.9 
21 
21 
21 


17 

21 

12 
2.2 
2.0 

1.8 
2.0 
1.8 
1.6 
1.2 

1.1 
.9 
1.0 
1.2 
1.1 

1.0 

.8 
.8 
.8 
.8 

.9 

.7 
.7 
.7 
.7 

.7 
.7 
.7 
.7 
.7 
.7 


0.6 
.6 
.6 
.6 
.6 

.7 
3.9 
1.2 
1.0 

.9 

.8 

6.4 

6.4 

6.7 

34 

5.3 
3.4 
1.4 
1.2 
.9 

.9 

.8 
.8 
.8 
.7 

.7 
2.9 

.8 
.8 
.7 
.8 


0.7 
.7 
.7 
.7 
.7 

.7 
.7 
.7 
.7 
.7 

.7 
.7 
.7 
.7 

.7 

1.2 
1.2 
11 
4.4 
1.2 

1.0 

.8 
.7 
.7 
.7 

.7 
.7 
.7 
.7 
.7 


0.7 
.7 
.7 
.7 

1.4 

2.2 
2.9 
27 
2.0 

.8 

.8 

1.6 

2.4 

15 

1.6 

1.1 
1.0 

.8 
. 7 
.7 

. 7 
.7 
.7 
.7 
.7 

.7 
.7 
.7 
.7 
.7 
.7 


0.7 
1.9 
3.2 
11 
3.4 

2.4 

.8 
67 
42 
18 

25 
27 
15 
10 
8.5 

9.2 
10 
67 
12 

9.0 

18 
11 
14 
16 
12 

12 

14 
14 
11 
7.9 


4.8 


2 




8 
8 
7 


2.0 


3 


12 


4 


15 


6 


32 


6 


35 
2.9 
10 

5.4 
.8 

1.1 

.9 
.9 
.9 
.9 

2.4 
3.8 

12 

21 

12 

2.0 
1.4 
3.9 

6.4 
.8 

.8 
.8 
.8 


60 


7 . .. 


32 


8 


4.4 


9 


4.1 


10 


3.6 


11 


2.7 


12 


3.9 


13 


2.6 


14 

15 


9.3 
16 


16 


18 


17 


19 


18 .. . . 


21 


19 


4.4 


20 


3.4 


21 


2.6 


22 


1.9 


23 


1 
1 


2 
1 

8 

8 
9 

8 
8 
8 
8 


1.8 


24 


1.8 


25 


1.5 


26 


1.2 


27 


1.2 


28 


1.1 


29 


1.0 


30 




.9 


31 




.9 













Note.— Discharge estimated for days (usually Sundays) on which no gage heights were recorded. 
Monthly discharge of Oopuola Stream near Huelo, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Eun-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



9.37 
4.60 
1.80 

17.8 
2.97 
3.61 
2.58 
2.84 
1.23 
2.34 

15.8 
9.24 



576 
259 
111 
1,060 
183 
215 
159 
175 
73 
144 
937 
567 



6.15 



4,460 



ISLAND OP MAUI. 



141 



SPRECKELS DITCH AT GAGE NO. 1, NEAR HUELO, MAUI. 

Location. — ^About SJ miles by trail east of Huelo, about 20 feet above bridge wliich 

crosses ditch in Ulawina Gulch. 
Records available. — December 18, 1910, to September 30, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 
Discharge measurements. — ^Made by wading. 
Accuracy. — Records good. 
Cooperation. — Station maintained in cooperation with East Maui Ditch Co. 

The following discharge measurement was made by C. T. Bailey: 
June 19, 1913: Gage height, 0.40 foot; discharge, 5.94 second-feet. 

Monthly discharge of Spreckels ditch at gage No. 1, near Huelo, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean. 



Run-ofl 

(total in 

acre-feet). 



Accu- 
racy. 



January . . . 
February. . 

March 

April 

May 

June 

July 

August 

September. 



4.1 
3.6 
1.6 
6.0 
5.5 
5.1 
3.4 
2.4 
3.7 



13.4 
0.1 
29.90 
5.8 
10.1 
11.0 
13.5 
12.0 
8.05 



The period . 



824 
561 
609 
1,540 
621 
655 
830 
738 
479 



6,860 



SPRECKELS DITCH AT GAGE NO. 2, NEAR HUELO, MAUI. 

Location. — ^About 7| miles by trail east of Huelo post office and 100 feet above 

junction of ditch with Kolea Stream No. 2. 
Records available.^November 6, 1911, to September 30, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 

Discharge measurements. — Made from log across ditch near gage. 
Accuracy. — Records good. 
Cooperation. — Station is maintained in cooperation with East Maui Ditch Co. 

The following discharge measurement was made by C. T. Bailey: 
June 19, 1913: Gage height, 0.90 foot; discharge, 6.84 second-feet. 

Monthly discharge of Spreckels ditch at gage No. 2, near Huelo, Maui, for 1913. ' 



January . . . 
February . . 

March 

April 

May 

June 

July 

August 

September . 



Month. 



The period . 



Discharge in second-feet. 



Maximum. Minimum. Mean 



13.1 
8.9 
9.3 
22.6 
10.8 
12.9 
12.5 
12.4 
7.5 



Run-ofl 

(total in 

acre-feet). 



494 
572 
1,340 
664 
768 
769 
762 
446 

6,620 



Accu- 
racy. 



142 WATER EESOUECES OP HAWAII, 1913. 

SPEECKELS DITCH AT GAGE NO. 3, NEAE HtJELO, MAUI. 



Location. — ^About 6f miles by trail east of Huelo and 400 feet above junction of ditch 

mth Haipuaena Stream. 
Records available. — December 18, 1910, to September 30, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 

Discharge measurements. — Made from log near gage. 
Accuracy. — Records good. 
Cooperation. — Station maintained in cooperation with East Maui Ditch Co. 

The following discharge measurement was made by C. T. Bailey: 
June 19, 1913: Gage height, 1.20 feet; discharge, 9.33 second-feet. 



% 



Monthly discharge of Spreckels ditch at gage No. 3, near Huelo, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Eun-off 
(total in 
acre-feet). 



Accu- 
racy. 



January... 
February.. 

March 

April 

May 

June 

July 

August 

September. 



7.4 
6.0 
3.6 
8.7 
7.9 
5.8 
5.8 
4.6 
6.0 



18.3 
12.9 
13.5 
27.4 
15.7 
16.2 
17.0 
15.7 
11.5 



The period. 



1,120 
716 
830 

1,630 
965 
964 

1,050 
965 
684 



8,920 



SPEECKELS DITCH AT GAGE NO. 4, NEAE HUELO, MAUI. 

Location. — About 6J miles by trail east of Huelo and about 250 feet above junction 

with small tributary of Puohakamoa Stream. 
Records available. — December 18, 1910, to September 30, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 

Discharge measurements. — Made from log at gage. 
Accuracy. — Records fair. 
Cooperation. — Station maintained in cooperation with East Maui Ditch Co. 

The following discharge measurement was made by C. T. Bailey: 
June 19, 1913: Gage height, 0.90 foot; discharge, 12.2 second-feet. 

Monthly discharge of Spreckels ditch at gage No. 4, near Huelo, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-ofl 
(total in 
acre-feet). 



Accu- 
racy. 



January . . 
February. 

March 

April 

May 

June 

July 

August. 



The period. 



9.5 
7.5 
4.0 
11.5 
9.5 
9.5 
5.5 
4.5 
7.0 



21.2 
15.2 
14.6 
27.8 
18.3 
18.3 
19.0 
17.3 
13.7 



1,300 



1,650 
1,130 
1,090 
1,170 
1,060 
815 

10,000 



ISLAND OF MAUI. 



143 



SPRECKELS DITCH AT GAGE NO. 5, NEAR HUELO, MAUI, 

Location. — About 5 miles east of Huelo and about 500 feet above drop into Alo 

Stream. 
Records available. — November 6, 1911, to September 30, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 

Discharge measurements. — Made from plank at gage. 
Accuracy. — Records good. 
Cooperation. — Station maintained in cooperation with East Maui Ditch Co. 

The following discharge measurement was made by C. T. Bailey: 
June 4, 1913: Gage height, 1.10 feet; discharge, 21.6 second-feet. 

Monthly discharge of Sprechels ditch at gage No. 5, near Huelo, Maui, for 1913. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Rim-ofl 
(total in 
acre-feet). 



Accu- 
racy. 



January... 
February. . 

March 

April 

May 

June 

July 

August 

September. 



The period . 



33.7 
24.6 
24.3 
43.4 
30.3 
28.2 
31.5 
30.4 
21.7 



2,070 
1,370 
1,490 
2,580 
1,860 
1,680 
1.940 
1,870 
1,290 



16.200 



SPRECKELS DITCH AT GAGE NO. 6, NEAR HUELO, MAUI. 

liocation. — About 3 J miles east of Huelo and 100 feet below Kolea Stream intake. 

Records available. — November 4, 1911, to June 30, 1913. 

Gage. — Vertical staff. 

Discharge measurements. — Made from log at gage. 

Control. — Probably permanent. 

Accuracy. — Records good. 

Cooperation. — Station maintained in cooperation with East Maui Ditch Co. 

The following discharge measurement was made by C. T. Bailey: 
June 14, 1913: Gage height, 1.35 feet; discharge, 44.5 second-feet. 

Monthly discharge of Sprecksls ditch at gage No. 6, near Huelo, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean. 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January . . 
February. 

March 

April 

May 

June 



33.4 
30.6 
31.8 
45.5 
42.4 
39.7 



The period . 



2,050 
1,700 
1,960 
2,710 
2,610 
2,360 

13,400 



144 WATER EESOUECES OF HAWAII, 1913. 

SPRECKELS DITCH AT GAGE NO. 8, NEAR HUELO, MAUI. 

Location. — About 1 mile by trail east of Huelo and 250 feet above gate to storage 

reservoir. 
Records available. — ^November 4, 1911, to September 30, 1913. 
Gage. — Vertical staff. 
Control. — Probably permaneiit. 
Discharge measurements. — Made from plank. 
Accviracy. — Records fair. Discharge estimated for Sundays, when no gage record 

was obtained. 
Cooperation. — Station maintained in cooperation with East Maui Ditch Co. 

The following discharge measurement was made by C. T. Bailey: 
June 4, 1913: Gage height, 2.10 feet; discharge, 45.1 second-feet. 

Monthly discharge of Sprechels ditch at gage No. 8, near Huelo, Maui, for 1913. 



Dischai'ge in second-feet. 



Maximum. Minimum. Mean. 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February. . 

March 

April 

May 

June 

July 

August 

September. 



The period . 



5.2 
1.9 

16 

22 

33 

32 

13 

17 

22 



17.5 
22.9 
34.1 
51.3 
45.4 
43.9 
40.6 
38.1 
29.8 



1,080 
1,270 
2,100 
3,OcO 
2,790 
2,610 
2,500 
2,340 
1,770 



19,500 



NAILIILIHAELE STREAM NEAR HUELO, MAUI. 



liocation. — About 300 feet above New Hamakua ditch, 3 miles south of Huelo post 
office. 

Records available. — December 9, 1910, to December 31, 1912; October 8 to De- 
cember 31, 1913. 

Gage. — Barrett & Lawrence water stage recorder. 

Control. — Probably permanent. 

Discharge measurements. — Made from footbridge. 

Diversions. — None above station. 

Accuracy. — Records good. 

Discharge measurevients of Nailiilihaele Stream near Huelo, Maui, in 1913. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


height. 


Dis- 
charge. 


Oct. 2.... 
9 


E. 0. Christiansen. . 
do 


Feet. 
0.86 
1.17 
1.58 


Sec.-ft. 
6.89 
26.6 
52.9 


Nov.13.. 
IS.. 


C.T.Bailey 

do 


Feet. 
1.70 
2.38 
3.30 


Sec.-fi. 
67.5 
174 


Nov. 3. 


do 


19.. 


do 


514 













ISLAND OP MAUI. 145 

Daily discharge, in second-feet, of Nailiilihaele Stream near Huelo, Maui, for 1913. 



Day. 


Oct. 


Nov. 


Dec. 


Day. 


Oct. 


Nov. 


Dec. 


1 




3.6 

13 
158 
104 

35 

28 

27 
290 
365 
251 

111 
160 

91 

44 

37 


32 

37 

65 

674 

245 

160 
71 
91 
62 

48 

41 
37 
33 
144 
71 


16 


14 

12 
8.5 
8.0 
8.0 

8.0 
8.0 
7.4 
6.8 
6.5 

5.3 
5.0 
5.0 
3.6 
3.6 
3.6 


45 
67 
225 
275 
122 

91 
48 
38 
103 
106 

140 
86 
52 
44 
36 


46 


2 




17 


63 


3 




18 


110 


4 




19 


49 


5 




20 


40 


6 




21... . 


34 


7 




22 


31 


8 ... 


156 
32 
15 

14 
12 
49 
42 
18 


23 . 


27 


9: 


24 


25 


10 


25 


23 


11 .... 


26 


18 


12 


27 


13 


13 


28 


13 


14 


29 


12 


15 


30 


12 




31 


11 









Monthly discharge of Nailiilihaele Stream near Huelo, Maui, for 1913. 



Month. 


Discharge in second-feet. 


Run-off 
(total in 
acre-feet). 


Accu- 


Maximum. 


Minimum. 


Mean. 


racy. 


October 8-31 


156 
365 
674 


3.6 
3.6 
11.0 


18.8 
106 
75.4 


895 
6,310 
4,640 


A. 




A. 


December 


A. 







KAILUA SIREAM NEAR HUELO, MAUI, 

Location. — One mile south of Huelo post office and 800 feet above Spreckels ditch, 
at 1,250 feet elevation. 

Records available. — December 8, 1910, to December 31, 1912; June 17 to De- 
cember 31, 1913. 

Gage. — Barrett & Lawrence water-stage recorder October 1 to December 31; vertical 
staff June 17 to September 30. 

Control. — Probably permanent. 

Discharge measurements. — Made from footbridge or by wading. 

Diversions.— Old Hamakua ditch formerly diverted water above station, but that 
section of ditch is not used at present time. 

Accuracy. — Records good October 1 to December 31; poor remainder of period on 
account of uncertainty of gage heights. 

Discharge measurements of Kailua Stream near Huelo, Maui, in 1913. 



Date. 


Made by — 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


June 16.. 
Aug. 26 . . 
Oct. 2... 


C. T. Bailey 

E. 0. Christiansen, 
.do... 


Feet. 
1.38 
1.23 
1.14 
1.53 


Sec-ft. 
8.51 
4.37 
2.95 
19.4 


Nov. 3. 
13. 

18. 


E. 0. Christiansen. 

C. T. Bailey 

do 


Feet. 
2.60 
2.03 
3.42 
3.90 


Sec-ft. 
73.8 
37.4 

188 


9... 


.. .do 


19. 


do 


270 













97764°— wsp 373—15- 



-10 



146 WATER EESOTJECES OF HAWAII, 1913. 

Daily discharge, in second-feet, of Kailua Stream near Huelo, Maui, for 1913. 



Day. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 




45 
149 
28 
47 
32 

42 
20 
11 

7.5 

8.8 

8.8 
9.4 

17 

14 
8.8 

7.5 
6.2 

5.8 
5.8 
5.8 

5.3 
4.9 

4.7 
4.7 
4.4 

4.9 
4.4 
4.0 
4.0 
3.6 
3.5 


11 
3.3 
2.9 
2.9 
2.9 

4.0 

42 

12 
6.2 
6.2 

4.9 

212 

26 

19 

91 

19 

10 
7.5 
7.2 
6.7 

6.7 
6.2 
5.8 
6.0 
5.3 

5.3 
8.3 
6.7 
5.1 
4.4 
24 


6.2 
5.3 
5.3 
4.9 
4.0 

3.6 
6.2 
3.5 
3.6 
3.6 

3.3 
3.3 
3.6 
3.6 
3.6 

4.9 
10 
111 
24 

9.4 

6.7 
5.3 

4.7 
4.4 
4.4 

3.8 
3.6 
3.6 
3.6 
3.5 


"■"ei"" 

13 

6.2 

5.5 
5.3 
12 

8.8 
8.0 

7.8 
7.2 
4.0 
4.0 
4.0 

3.3 
2.9 
2.9 
2.9 
2.9 

2.7 
2.7 
3.3 
3.5 
3.8 
4.0 


4.0 
30 
136 
65 
22 

16 

31 
216 
384 
186 

70 
112 
41 
22 
19 

46 
106 
314 
290 

79 

56 
30 
25 
174 

88 

100 
42 
33 

28 
25 


21 


2 




20 


3 




22 


4 




443 


5 




262 


6 




104 


7 




56 


8 




45 


9 




26 


10 




17 


11 




13 


12 




12 


13 




11 






61 


15 




69 


16 




28 




7.5 
6.7 
6.0 

5.8 

5.1 
5.1 
4.4 
4.0 
6.0 

6.7 
15 
12 

6.7 
38 


28 


18 


81 




28 


20 


20 


21 


18 


22 


16 


23 


14 




13 


25 


12 


26 


11 




11 


28 


10 




12 


30 


11 




11 









Note. — No record Oct. 1-7. 

Monthly discharge of Kailua Stream near Huelo, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off (in 
acre-feet). 



Accu- 
racy. 



Jtme 17-30. . . 
July 

August 

September. . . 
October 8-31 
November. . . 
December. . . 



38 
149 
212 
111 

61 
384 

443 



4.0 
3.5 
2.9 
3.3 
2.7 
4.0 
10.0 



9.21 
17.0 

18.7 
7.57 
5.86 
93.0 
48.6 



256 
1,040 
1,150 
528 
360 
5,530 
2,990 



The period . 



11,900 



Note. — Water-stage recorder installed October 1. 

OANUI STREAM NEAR HUELO, MAUI. 

Location. — At New Hamakua ditch crossing, 1 mile soitth of Huelo post office. 
Records available. — December 7, 1910, to December 31, 1911; June 17 to December 

31, 1913. 
Gage. — Vertical staff in two sections. 

Control. — Upper side of New Hamakua ditcb forms permanent control. 
Discharge measurements. — Made by wading. 
Diversions. — None above station. 
Accuracy. — Records fair. 



ISLAND OF MAUI. 



147 



Monthly discharge ofOanui Stream near Huelo, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Miaimum. Mean. 



Run-ofE 
(total in 
acre-feet). 



Accu- 
racy. 



June 17-30. 

July 

August 

September. 

October 

November.. 
December . . 



3.5 
3.5 
3.5 
3.5 
3.5 
3.0 
3.5 



4.46 
4.98 
5.00 
3.75 
3.95 
12.4 
9.87 



The period . 



124 
306 
307 
223 
243 
738 
607 



2,550 



HOOLAWANUI STREAM NEAR HUELO, MAUI. 
Location. — One-fourth mile east of Lupi and about 5 miles by trail from Huelo; 300 

feet above crossing of New Hamakua ditch. 
Records available. — December 12, 1910, to December 31, 1913. 
Gage.^ — Vertical staff; datum lowered 0.20 foot June 6, 1913. 
Control. — Probably permanent. 
Discharge measurements. — Made by wading. 
Diversions. — None above station. 
Accuracy. — Records fair. 
Cooperation. — Station is maintained in cooperation with East Maui Ditch Co. 

Discharge measurements of Hoolawanui Stream, near Huelo, Maui, in 1913. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


June 5 

Aug. 27 . . 


C. T. Bailey 

do 


Feet. 
0.30 
.34 


Sec.-ft. 
2.84 
4.68 


Oct. 2... 
Nov. 19 . 


E. 0. Christiansen. 
C. T. Bailey 


Feet. 
0.24 
1.02 


Sec.-ft. 
1.79 
62.8 



Daily discharge, in second feet, of Hoolawanui Stream near Hu^lo, Maui, for 1913. 



Day. 



1 

2 
3 

4, 
5 

6 
7 
8 
9 
10 

11 
12 
13 

14 
15 

16 
17 
18 
19 
20 

21 

22 
23 
24 
25 

26 
27 
28 
29 
30 
31 



Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


12 


4 


4 


15 


9 


2.0 


13 


2.3 


2.6 


1.9 


1.9 


9 


4 


3 


8 


8 


3.0 


32 


2.3 


2.6 


1.9 


2.1 


8 


3 


3 


6 


8 


2.0 


10 


2.5 


2.6 


4.0 


15 


7 


3 


3 


6 


7 


6.0 


11 


2.3 


2.5 


2.3 


17 


6 


3 


3 


5 


6 


3.0 


9.2 


2.3 


2.3 


1.9 


5 


6 


88 


3 


5 


6 


3.0 


12 


2.6 


2.3 


2.5 


5.0 


5 


7 


3 


4 


5 


3.0 


9.2 


5.0 


2.6 


2.6 


4.0 


10 


5 


3 


4 


5 


2.6 


8.0 


2.6 


2.3 


19 


46 


10 


4 


4 


4 


5 


2.8 


7.0 


2.3 


2.3 


4.0 


94 


10 


4 


3 


4 


4 


4.0 


6.5 


2.5 


2.3 


3.0 


62 


7 


3 


3 


40 


4 


2.6 


6.0 


2.3 


2.3 


2.6 


48 


7 


3 


3 


20 


4 


18 


6.0 


33 


2.3 


2.5 


56 


52 


3 


2 


71 


4 


10 


6.5 


7.5 


2.3 


7.0 


24 


44 


3 


2 


50 


5 


8.0 


6.5 


5.5 


2.3 


3.5 


17 


71 


3 


2 


88 


8 


6.0 


6.0 


30 


2.1 


2.6 


15 


13 


4 


8 


82 


6 


5.0 


5.0 


9.2 


2.3 


2.6 


16 


12 


3 


6 


96 


7 


4.0 


4.5 


8.6 


3.5 


2.6 


16 


10 


11 


6 


48 


5 


3.0 


4.0 


6.5 


9.2 


2.5 


66 


10 


48 


4 


30 


5 


3.0 


4.0 


5.0 


5.0 


2.3 


82 


9 


8 


4 


27 


4 


3.0 


3.5 


5.0 


2.6 


2.3 


38 


8 


7 


5 


30 


3 


3.0 


3.0 


5.0 


2.6 


2.3 


29 


7 


6 


10 


17 


3 


3.0 


3.0 


4.0 


2.3 


2.3 


23 


6 


5 


5 


16 


3 


3.0 


3.0 


3.5 


2.3 


2.1 


17 


5 


5 


4 


16 


3 


2.8 


2.8 


3.0 


2.3 


2.1 


44 


5 


4 


6 


29 


3 


3.0 


2.6 


3.0 


2.1 


2.1 


33 


4 


4 


3 


15 


6 


4.0 


2.6 


3.0 


2.1 


2.1 


36 


4 


4 


3 


22 


4 


9.2 


2.6 


3.5 


2.1 


2.1 


28 


4 


4 


5 


14 


3 


6.0 


2.6 


3.0 


2.1 


2.1 


20 


4 




4 


14 


3 


4.0 


2.5 


2.8 


2.1 


2.1 


17 


5 




4 


11 


3 


7.0 


2.5 


2.6 


2.1 


1.9 


13 


4 




16 




3 




2.5 


3.0 




1.9 





11 

9.2 
13 

112 

82 

62 
35 
36 
24 
16 

15 
14 
13 
40 
22 

17 
19 
39 
17 
13 

12 

10 
9.2 
8.0 
S.O 

7.0 
6.5 
6.0 
6.0 
5.0 
5.0 



148 WATEE EESOTJBCES OF HAWAII, 1913. 

Monthly discharge of Hoolawanui Stream near Huelo, Maui, for 1913. 



Month. 



Discharge in second-feet. 



MaximuTn. Minimum. Mean. 



Run-ofl 
(total in 
acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



71 
88 
16 
96 

9.0 
18 
32 
33 

9.2 
19 
94 
112 



112 



4.0 
3.0 
2.0 
4.0 
3.0 
2.0 
2.5 
2.3 
2.1 
1.9 
1.9 
5.0 



12.1 
9.04 
4.39 

26.5 
4.90 
4.63 
6.44 
5.67 
2.68 
3.12 

29.7 

22.3 



10.9 



744 

502 

270 

1,580 

301 

276 

396 

349 

159 

192 

1,770 

1,370 



7,910 



HOOLAWALIILII STREAM NEAR HUELO, MAUI. 

Location. — ^About 400 feet above New Hamakua ditch, crossing, 1 J miles east of Lupi, 

and about 4 miles above Huelo post office. 
Records available. — April 5, 1911, to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 
Discharge measurements. — Made by wading. 
Diversions. — None above station. 
Accuracy. — Records good. 

Discharge measurements of Hoolawaliilii Stream near Huelo, Maui, in 1913. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Dif:- 

charge . 


June 6... 
Aug. 27.. 


C.T.Bailey 

E. O. Christiansen. 


Feet. 
0.14 
.16 


Sec.-ft. 
3.12 
3.66 


Oct. 2... 
Nov. 19. 


E. 0. Christiansen. 
C.T.BaUey 


Feet. 
0.11 
.51 


Sec.-ft. 
2.30 
31.2 



ISLAifD OF MAtJl. 149 

Daily discharge, in second-feet, of Hoolawaliilii Stream near Huelo, Maui, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


7.0 
5.7 
4.9 
4.1 
3.4 

3.4 
3.0 

5.7 
5.7 
5.7 

4.9 
4.1 
26 

28 
28 

22 
8.8 
6.3 
5.3 
4.9 

4.1 
4.1 
3.4 
3.4 
3.4 

3.4 
3.4 
2.6 
2.6 
2.2 
2.2 


2.2 
2.2 
2.2 
1.8 
2.6 

36 

24 
3.4 
3.4 
2.6 

2.6 
2.2 
2.2 
2.2 
2.2 

2.2 
2.2 
5.7 
23 
3.4 

3.0 
2.6 
2.2 
2.2 
1.8 

1.8 
1.8 

1.8 


1.8 
1.6 
1.6 
1.6 
1.6 

1.8 
1.6 
2.2 
1.6 
1.4 

1.4 
1.4 
1.4 
1.4 
1.4 

4.5 
3.4 
3.8 
2.2 
2.6 

2.6 
4.9 
2.6 
2.2 
2.6 

1.8 
1.8 
3.0 
2.6 
2.6 
9.5 


8.2 
3.4 
2.6 
2.6 
2.6 

2.2 

2.2 
1.8 
2.6 
1.8 

32 
10 
34 
22 
37 

34 
43 
26 
14 
12 

13 
11 

8.2 
7.6 
16 

10 
8.2 
5.7 
5.3 
4.1 


4.1 
3.8 
3.8 
3.4 
3.4 

3.4 
3.0 
2.6 
2.6 

2.2 

1.8 
1.8 

1.8 
2.2 
3.0 

2.6 
2.6 
2.6 
1.8 
1.8 

1.6 
1.4 
1.4 
1.6 
1.4 

2.6 
1.8 

i.e 

1.4 
1.4 
1.4 


1.4 
1.3 
1.3 
2.2 
1.4 

1.4 

1.4 
1.4 
1.4 

1.8 

1.4 
4.5 
5.7 
5.3 
4.9 

3.4 
3.4 

1.8 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.8 

1.8 
5.3 

4.9 
3.4 
7.6 


8.2 
16 

8.2 
8.2 
8.2 

9.5 
7.0 
5.7 
5.7 
4.9 

4.9 
4.1 
4.9 
4.5 
4.1 

4.1 
3.8 
3.4 
3.4 
3.4 

3.4 
3.4 
3.4 
3.4 
3.4 

3.0 
3.0 

2.6 
2.6 
2.6 
2.6 


2.6 
2.6 
2.6 
2.6 
2.2 

2.6 
4.5 
2.6 
2.6 
3.0 

2.6 

23 
5.7 
4.9 

11 

7.0 
4.9 
4.9 
4.5 
4.1 

4.5 
4.1 
4.1 
3.4 
3.4 

3.4 
3.8 
3.4 
3.4 
3.4 
4.1 


3.0 
3.0 
3.4 
3.0 

2.6 

2.6 
3.0 
3.0 
3.4 
2.6 

2.6 
2.6 
3.0 
2.6 
2.6 

2.6 
3.4 
5.7 
3.8 
3.4 

3.0 
3.0 
3.0 
2.6 
2.6 

2.6 
2.6 
2.6 
2.6 
2.6 


2.2 
2.2 
4.5 
2.6 
2.6 

3.0 
3.4 
9.5 
4.1 
3.4 

2.6 
2.6 
7.0 
3.8 
3.4 

3.4 
3.4 
3.0 
3.0 
3.0 

3.0 
2.6 
2.6 
2.6 
2.6 

2.6 
2.6 
2.2 
2.2 
2.2 
2.2 


2.2 
2.2 
4.9 
5.7 
4.1 

3.4 
3.0 

21 

30 

23 

21 
37 
19 
14 
11 

11 
9.5 
23 
32 
21 

16 
13 
11 
16 
15 

21 
17 
13 
11 
9.5 


8.2 


2 


7.6 


3 


8.2 


4 


41 


5 . ... 


39 


6 


36 


7 


26 


8 


24 


9 


16 


10 


11 


11 


8.8 


12 


8.8 


13 


8.2 


14 


16 


15 


11 


16 


8.2 


17 


8.8 


18 


16 


19 


8.2 


20 


8.2 


21 


7.6 


22 . 


7.0 


23 


5.7 


24 . 


5.3 


25 


4.9 


26 


4.5 


27 


4.5 


28. 


4.1 


29 


4.1 


30 . 


3.8 


31 


3.8 







Monthly discharge of Hoolawaliilii Stream near Huelo, Maui, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-ofE 

(total in 

acre-feet). 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



28 

36 
9.5 

43 
4.1 
7.6 

16 

23 
5.7 
9.5 

37 

41 



43 



2.2 

1.8 
1.4 
1.8 
1.4 
1.3 
2.6 
2.2 
2.6 
2.2 
2.2 
3.8 



7.15 
5.20 
2.47 
12.8 
2.32 
2.66 
5.02 
4.56 
2.97 
3.23 
14.7 
12.1 



6.25 



440 
289 
152 
762 
143 
158 
309 
280 
177 
199 
875 
744 



4,530 



HONOPOU STREAM NEAR HUELO, MAUI. 

Location. — ^Three-fourtlis mile northwest of Lupi and about 3^ miles southwest of 

Huelo; 200 feet above New Hamakua ditch crossing. 
Records available. — December 10, 1910, to December 31, 1913. 
Gage. — Vertical staff. 
Control. — Probably permanent. 
Discharge measurements. — Made by wading. 
Diversions. — None above station. 
Accuracy. — Records good. 
Cooperation. — Station maintained in cooperation with East Maui Ditch Co. 



150 WATER EESOtJECES OP HAWAII, 1913. 

Discharge measurements of Honopou Strearn near Huelo, Maui, in 1913. 



Date. 


Made by— 


Gage 
height. 


Discharge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


June 5... 
Aug. 27.. 


C.T.Bailey 

E. 0. Christiansen. 


Feet. 
0.10 
.20 


Sec.-ft. 
1.55 
3.01 


Nov. 19. 


C.T.Bailey 


Feet. 
0.79 


Sec.-ft. 
19.5 



Daily discharge, in second-feet, of Honopou Stream near Huelo, Maui, for 1912-13. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1912. 
1 . 


3.3 
3.3 
2.9 
2.9 
2.6 

2.6 
2.6 
2.4 
2.2 
2.2 

1.9 
1.9 
1.9 
1.9 
1.7 

1.7 
1.5 
1.5 
1.4 
1.2 

1.2 
1.2 
1.2 
2.0 
1.5 

1.5 
1.4 
1.2 
1.2 
1.0 
1.0 

5.5 
4.6 
4.2 
3.5 
3.3 

3.1 
2.9 
5.1 
5.1 
5.3 

4.4 
3.7 

22 

16 

26 

20 
6.5 
5.3 
5.1 
4.6 

3.7 
3.3 
3.3 
2.9 
2.9 

2.8 
2.6 
2.6 
2.4 
2.2 
2.2 


0.9 
.9 
.9 
.9 
.9 

.8 

.8 

.9 

1.9 

1.2 

1.2 
1.2 
3.3 
2.0 
1.4 

1.2 
1.0 
.9 
2.9 
3.7 

6.0 
7.5 
4.8 
4.2 
4.0 

4.2 
9.5 
10 
6.5 

2.2 
2.2 
2.0 
1.9 
1.9 

33 
3.3 

2.6 
2.2 
2.2 

2.0 
1.9 
1.9 
1.9 
1.9 

2.0 
1.9 
4.2 
19 
3.7 

3.3 
3.1 

2.9 
2.8 
2.6 

2.4 
2.2 
2.2 


7.0 
8.3 
8.0 
6.8 
6.2 

6.0 
6.0 
5.1 
6.2 
5.5 

12 
9.2 
12 

8.6 
7.5 

6.0 
6.2 
11 
6.5 
6.5 

5.5 
5.1 
4.6 
4.2 
3.7 

3.7 
3.5 
3.3 
3.3 
3.7 
4.4 

2.0 
1.9 
1.9 
1.7 
1.7 

1.5 
1.7 
1.5 
2.2 
1.5 

1.5 
1.4 
1.2 
1.2 
3.7 

2.9 
2.9 
2.9 
2.2 
2.2 

2.6 
4.6 
2.6 
2.0 
2.6 

1.9 
1.9 
2.8 
2.2 
2.2 
6.5 


5.1 
4.4 
6.5 

32 

21 

13 
18 
19 
18 
13 

12 
11 

9.2 
11 

11 

9.2 
8.0 

7.5 
7.0 
8.3 

6.5 
5.5 
6.5 
5.8 
5.5 

6.5 
5.8 
5.1 
5.1 
4.6 

5.5 
3.3 
2.6 
2.6 
2.4 

2.2 
2.2 
2.0 
2.4 
2.0 

15 
8.0 
20 
16 
26 

21 
31 
17 
12 
11 

13 

9.2 
8.0 
7.8 
11 

7.0 
8.6 
6.5 
5.8 
5.1 


4.2 
4.2 
4.0 
5.1 
3.7 

3.7 
3.3 
3.7 
3.3 
2.9 

2.8 
2.6 
2.6 
2.4 
2.2 

2.0 
2.0 
2.0 
2.0 
2.2 

2.0 
1.9 
1.7 
1.9 
1.5 

2.6 
3.5 
2.9 
2.9 
2.0 
2.2 

4.6 
4.2 
4.0 
3.7 
3.3 

3.3 
3.1 
2.9 
2.6 
2.6 

2.4 
2.6 
2.4 
2.6 
3.7 

2.9 
3.3 
2.6 
2.6 
2.2 

1.9 
1.7 
1.7 
1.9 
1.9 

2.4 
1.9 
1.7 
1.5 
1.5 
1.5 


1.9 
1.7 
1.5 
1.5 
1.5 

1.5 
1.4 
1.4 
1.4 
2.2 

1.9 
1.9 
1.9 
1.7 
1.9 

1.9 
1.5 
1.5 
1.5 
1.6 

1.5 
1.5 
1.4 
2.9 
1.9 

1.7 
1.7 
1.7 
1.5 
1.5 

1.4 
1.2 
1.2 
2.2 
1.5 

1.4 
1.5 
1.4 
1.5 
1.9 

1.2 
4.2 
3.7 
2.9 
2.6 

2.2 
1.9 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.9 

4.4 
2.9 
2.2 
4.6 


1.5 
1.5 
2.0 

2.8 
1.9 

1.7 
1.9 
1.7 
4.6 
1.9 

2.6 
1.9 
1.9 
1.7 
1.7 

1.7 
1.5 
1.5 
1.5 
1.5 

1.5 
1.4 
1.4 
1.9 
1.9 

1.5 
1.4 
1.7 
1.5 
1.2 
1.2 

3.7 
8.6 
4.6 
4.6 
4.2 

4.8 
4.0 
3.7 
3.5 
3.3 

3.1 

2.9 
2.9 
2.9 
2.8 

2.6 
2.2 
2.2 
2.0 
2.0 

1.9 
1.9 
1.7 
1.7 
1.5 

1.5 
1.5 
1.5 
1.4 
1.4 
1.2 


1.2 

1.0 

1.0 

.9 

.9 

.9 
.9 
.9 
.9 
1.4 

2.2 
1.2 
1.2 
1.5 
3.7 

1.9 

1.2 

1.0 

.9 

.9 

.9 
1.9 
.9 
.9 
.9 

.8 
.8 
.8 
.9 
.9 
.9 

1.2 
1.2 
1.2 
1.2 
1.0 

1.2 
3.7 
1.5 
1.2 
1.2 

1.0 
10 
3.3 
2.9 

6.8 

3.5 
3.1 
2.8 
2.6 
2.6 

2.6 
2.2 
2.0 
1.9 
1.9 

1.9 
2.0 
1.9 
1.9 
1.5 
1.9 


1.0 
2.8 
1.7 
2.8 
1.5 

1.5 
2.2 
1.7 
1.5 
1.2 

1.2 
1.0 
1.0 
.9 
.9 

.9 
.9 
.9 
.8 
.9 

.8 
.8 
.8 
.8 
.6 

.6 
.6 
.6 
.9 
1.5 

1.5 
1.5 
1.5 
1.4 
1.2 

1.2 
1.2 
1.2 
1.2 
1.4 

1.2 
1.2 
1.2 
1.0 
.9 

1.2 
1.9 
3.3 
2.0 
1.2 

1.2 
1.0 
.9 
.9 
.9 

.9 
.9 
.9 
.9 
.9 


1.0 
1.5 
.9 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
49 
1.2 

.9 
.6 
.6 
.6 
.6 

2.9 
3.5 
3.3 
2.6 
2.2 

2.4 

10 

12 
4.2 
5.1 
8.3 

0.9 
.9 
.9 
.9 
.9 

1.2 
1.4 
5.3 
1.9 
1.5 

1.2 
1.2 
3.7 
2.2 
1.5 

1.4 
1.2 
1.2 
1.2 
1.0 

1.0 
1.0 
1.0 
.9 
.9 

.9 
.9 
.9 
.9 
.9 
.9 


5.3 
4.2 
7.2 
4.2 
3.3 

3.3 
2.9 
2.6 
19 

8.6 

7.0 
5.1 
4.6 
4.2 
.3.7 

8.0 
9.5 

12 

10 

7.8 

6.2 
6.0 
5.5 
5.1 
5.5 

5.1 
5.1 
4.2 
3.5 
3.3 

0.9 
.9 
2.9 
3.5 
2.2 

2.2 
1.9 

17 

22 

20 

16 
24 
11 
11 
9.8 

8.3 
7.5 

14 

22 

15 

15 
10 
9.2 
12 
14 

15 

13 

11 
8.6 
8.0 


4.2 


2 


13 


3 


25 


4 


12 


5 


7.8 


6 


7.0 


7 


7.2 


8 


6.5 


9 


4.6 


10 


5.1 


11 


4.6 


12 


4.2 


13 . 


3.7 


14 


3.7 


15 


3.5 


16 


3.5 


17 


4.2 


18 ... 


4.2 


19 


7.5 


20 


5.1 


21 


14 


22 


16 


23.. .. 


16 


24 


10 


25 


8.9 


26 


8.0 


27 


7.0 


28 


7.5 


29 


7.0 


30 


6.0 


31 


5.1 


1913. 
1 


7 


2 


6.5 


3 


7 


4 


36 


5 


29 


6 


22 


7 


16 


8 


17 


9 


13 


10 


11 


11 


9 2 


12 


8.9 


13 


7 5 


14 


16 


15 


10 


16 


8.6 


17 


9 2 


18 


12 


19 


8 3 


20 ... 


7 2 


21 


6 5 


22 


6.0 


23 


5 5 


24 


5 1 


25 


5 1 


26 


4 6 


27 


4 2 


28 


3 7 


29... 


3 3 


30 


3 1 


31 


3 1 







ISLAND OF MAUI. 151 

Monthly discharge of Honopou Stream near Huelo, Maui, for 1912-13. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-oflE 
(total in 
acre-feet). 



Accu- 
racy. 



1912 

January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 

1913 

January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



3.3 

10 

12 

32 
5.1 
2.9 
4.6 
3.7 
2.8 

49 

19 

25 



49 



26 

33 
6.5 

31 
4.6 
4.6 
8.6 

10 
3.3 
5.3 

24 

36 



3.3 

4.4 
1.5 
1.4 
1.2 



2.6 
3.5 



0.6 



2.2 
1.9 
1.2 
2.0 
1.5 
1.2 
1.2 
1.0 



3.1 



1.87 
2.95 
6.31 
10.0 
2.77 
1.68 
1.79 
1.17 
1.18 
3.85 
6.07 
7.81 



3.95 



6.04 
4.12 
2.31 
9.54 
2.62 
2.06 
2.83 
2.42 
1.26 
1.35 
10.9 
10.1 



115 

170 

388 

595 

170 

100 

110 
71.9 
70.2 

237 

361 

480 



371 
229 
142 
568 
161 
123 
174 
149 
75 
83 
649 
621 



36 



0.9 



4.62 



3,340 



MISCELLANEOUS ME ASUEEMENTS . 



Measurements of streams on the island of Maui at points other 
than regular gaging stations are listed below: 

Miscellaneous discharge measurements on Maui for 1913. 



Date. 


Stream. 


Locality. 


Gage 
height. 


Dis- 
charge. 


Mar. 15 


South Waiehu 


Wailuku 


Feet. 
0.60 

.89 
1.35 

.81 
4.80 
4.65 
2.30 
2.80 

.86 

.25 


Sec.-ft. 
69 


Apr. 9 
9 


Waikapu (North Fork)" 


Old shops below tunnel portal 
300 feet above junction with 

South Fork. 
Olowalu 


2.68 


do 


2.73 


16 


Olowalu 


51.6 


16 


Olowalu ditch No. 2 


do 


16.9 




Nailiihaele 


Huelo 


2.16 


7 


New Hamakua ditch, Gage No. 5 


do 


42.4 


7 


New Hamakua ditch. Gage No. 4 


do 


37.0 


7 


New Hamakua ditch. Gage No. 3 


do 


31.6 


7 


New Hamakua ditch, Gage No. 1 


do 


34.3 


7 


New Hamakua ditch 


Halehaku Weir, Huelo 

Huelo 


73.0 




Halehaloi 


2.63 


July 21 
21 


Lower Springs 


Kalepo Gulch, near Kaupo . . 


.44 


Uutier Serines 


do 




.22 


21 


Manawainui 


Below large springs, near 

Kaupo. 
Above large springs, near 

Kaupo. 
Near Kipahulu 




2.03 


21 


do 


1.22 


July 22 
22 


Alelele 


.36 


Oheo 


Wooden bridge near Kipahulu 




1.17 


22 


Puaaluu 


do 




2.24 


22 


Halalawe . . 


. ...do 




1.86 


22 




do 




1.29 


22 


Kaili . . 


do 




1.88 


23 




Near Keanae 




1.71 


23 


East Wailuaiki 


do 




7.00 


Sept. 30 
30 




At Intake near Lahaina 




2.76 


do . .... 


Above Intake near Lahaina . . 




4.48 


Apr. 14 
Aug. 19 


Kahoma 




1.16 
.62 


9.21 


do 


do 


.19 



a Tributary to Waikapu Stream. 



152 WATER EESOTJECES OP HAWAII^ 1913. 

Miscellaneous discharge measurements on Maui for 1913 — Continued. 



Date. 


Stream. 


Locality. 


Gage 
height. 


Dis- 
charge. 


Apr. IS 
29 


Kauaula 


Near Lahaina 


Feet. 
1.35 

.96 
1.44 
1.04 
1.40 

.72 
1.15 
1.38 

.84 
1.81 
6.02 
3.61 


Sec.-ft. 
63.4 


do.o 


do 


10.8 


May 14 

Aug. 19 

Apr. 16 

21 


. ...do 


do 


40.6 


do 


do 


8.84 




Near Olowalu 


72.8 


do 


.... do 


11.6 


22 


do.b 


do 


11.8 


May 15 
Aug. 20 


. .do 


do 


36.6 


do 


do 


6.37 




Near Huelo 


.29 


Nov. 18 




Near Keanae 


554 


20 


do 


do 


32 











a New gage established May 15, 1913. * New datum; gage moved to better location. 

ISLAND OF HAWAII. 
GENERAL CONDITIONS. 

The perennial streams of the Island of Hawaii are mainly included 
in two groups, one comprising an area about 10 miles wide, in the 
Kohala and Hamakua districts, and the other an area about 16 miles 
wide in the Hilo district between the South Branch of Wailuku River 
on the southeast and Maulua Gulch on the northwest. 

The low water run-off from the Kohala and Hamakua districts is 
now practically all diverted into ditches serving the sugar lands of 
the north coast of the island. Only a small part of the mean run-o£F 
from the Hilo district is now being utilized, the greater part being 
allowed to waste into the sea. 

It has been proposed to construct a high-line canal at an elevation of 
about 2,700 feet and carry this water to serve either thesemiarid lands 
of Kau on the south side of the island, or the dry government lands 
in the vicinity of Waimea which are now being leased for cattle range. 

In September, 1911, a concession was sought, and later granted, 
by a promotor for the construction of what was generally known as 
the Kau ditch project, and at the request of the territorial officials 
the work of investigating the run-off of the Hilo district along the 
2,700-foot contour was begun. In September, October, and Novem- 
ber, 1911, a foot trail was cut through the swamp and jungle from 
the South Branch of Wailuku River to the North Branch of Kawainui 
River, a distance of about 8 miles by trail. Staff gages were estab- 
lished on aU appreciable channels, whether of perennial discharge or 
not. 

Eighty-three stations were established and a camp was built about 
midway on the trail. Lack of funds prohibited further extension of 
the. work and the construction of bridges or cables across the large 
gulches with the result that the larger streams could not be crossed 
when in flood. The trail was merely a passage cut through the 



ISLAND OF HAWAII. 16S 

jungle, over and under logs, in and out of gulches, and, for the greater 
part, from a few inches to several feet deep in swamp muck. Two 
gage readers were employed who lived in the midway camp and who 
went over the trail once a day on an average of about four days in 
the week and read the gages — one man working south and the other 
north and return. The condition of the trail was such that about 
eight hours were necessary to cover the 8-mile trip. All supplies for 
the camp and work were packed in on men's backs from the end of 
the Kaiwiki homestead road, a distance of about 3^ miles. One day 
of the week was allowed the observers for packing in supplies, and 
one day for rest. Up until May, 1913, when funds became available 
for the construction of cableways across the larger gulches, many 
daily records were lost on account of the observers being unable to 
cross these gulches when in flood. On account of the flashy type of 
the streams it was found that two readings daily, within a few hours 
of each other, gave a very poor index of the daily mean gage heights 
of the streams. 

In the spring of 1913 it became apparent that the Kau ditch pro- 
ject would not soon be completed, and this fact, coupled with the high 
cost of obtaining the unsatisfactory and meager data on surface 
fluctuation, led to the suspension of the work until funds would be 
available to construct a dry trail across the entire district, to estab- 
hsh water-stage recorders on the larger streams, and to improve 
cross sections, controls, and other features. The work was sus- 
pended on July 18, 1913. 

Ten rain gages read at monthly and bimonthly periods were estab- 
lished at approximately 500-foot elevation intervals from sea level 
to 5,000 feet, the approximate elevation at which the wet, or forest, 
zone meets the arid lava slopes of Mauna Kea Mountain. Practi- 
cally all rainfall above the 5,000-foot contour is absorbed by the 
porous lava. Rainfall observations were terminated on June 30, 
1913. 

HILO GROUP. 
STATIONS AT 2,700-FOOT LEVEL. 

Location. — On trail in forest back of Hilo, at approximately 2,700 feet above sea 
level. The trail is about 8 miles long and the camp, about midway on the trail, 
is reached by a foot trail 3^ miles long from the end of the Kaiwiki homestead 
road. The camp is about 7 miles west-northwest from Hilo. Beginning at the 
South Branch of Wailuku River, the stations are niunbered from 1 to 18 and from 
25 to 87, including stations Nos. 12a and 86a, to the North Branch of Kawainui 
River. There are no stations niunbered 19 to 24. 

Records available.— Stations 1-12, October 6, 1911, to July 18, 1913. Station 12a, 
November 30, 1912, to July 18, 1913. Stations 13-18, 25-27, October 5, 1911, to 
July 18, 1913. Stations 28-41, September 28, 1911, to July 18, 1913. Stations 
42^7, September 28, 1911, to July 18, 1913. Stations 48-50, September 31, 1911, 
to July 18, 1913. Stations 51-52, October 7, 1911, to July 18, 1913. Stations 



154 



WATER EESOUECES OF HAWAII, 1913. 



53-65, October 10, 1911, to July 19, 1913. Stations 66-68, October 21, 1911, to 
July 18, 1913. Stations 69-74, November 13, 1911, to July 18, 1913. Stations 
75-86, November 14, 1911, to July 18, 1913. Station 86a, November 18, 1912, to 
July 18, 1913. Station 87, November 14, 1911, to July 18, 1913. 

Drainage area. — About 75 square miles for all stations (may be in error 20 per cent). 

Gages. — Vertical staff read to nearest two-hundredths, twice daily, about 4 days in 
the week. 

Diversions. — All low-water run-off is diverted below the stations, but it is estimated 
that less than 20 per cent of the mean discharge is being utilized; no diversions 
above the stations. 

Accuracy. — At only 24 of the 83 stations maintained is the discharge sufficient to 
warrant current-meter measurements and ratings; mean discharge at each of the 
other 59 stations is one-half second-foot or less; the aggregate mean run-off of 
these 59 stations for the period January 1 to June 18, 1913, is estimated to have 
been only 4.2 second-feet. As the mean discharge of the 24 streams rated was 
194.0 second-feet, the mean run-off for the 59 estimated stations was less than 2 
per cent of the total. For these stations for which ratings have been made and 
results published rating curves are all fairly well defined for low and medium 
stages.. Discharge for days for which there are no gage-height records was esti- 
mated from daily rainfall records at camp near station No. 51. 

The total mean run-off for all stations for the period January 1 to July 18, 1913, was 
198.2 second-feet. The minimum run-off, which was less than 6 second-feet, occurred 
in March. The maximum run-off of all stations probably exceeded 5,000 second-feet. 

Discharge measurements made at unrated stations on 2,700-foot level near JSilo, Hawaii, 
during the period Jan. 1 to July 18, 1913. 

[E. O. Christiansen, hydrographer.] 



Station No. 


Date. 


Gage 
height. 


Dis- 
charge. 


Station No. 


Date. 


Gage 
height. 


Dis- 
charge. 


39 


Apr. 24 
May 16 
Apr. 24 
May 16 
Apr. 23 
May 4 

...do 

May 14 

...do 

...do 

May 15 

...do 

...do 

...do 

...do 

...do 


Feet. 
0.90 
.96 
.49 
1.00 
.93 
2.38 
2.28 
2.22 
2.24 
2.28 
2.23 
2.26 
2.28 
2.30 
2.32 
2.34 


Sec.-ft. 

0.23 
.44 
.80 

2.4 
.83 

1.22 
.12 
.06 
.08 
.11 
.07 
.10 
.12 
.12 
.13 
.18 


60 o 


May 15 
...do....: 

...do 

May 21 
May 22 

...do 

May 23 
May 24 
May 29 
May 30 
May 31 
Apr. 18 
..do 


Feet. 
2.36 
2.38 
2.39 
2.19 
2.18 
2.17 
2.16 
2.14 
2.24 
2.20 
2.25 
1.22 
.81 
.99 
.90 


Sec.-fj. 
0.21 


41 


55 


.23 
.25 


49 


.04 
.03 


50 a 


.03 




.03 
.02 
.07 
.05 
.08 
1.03 




59 


.77 




70 


...do 


1.19 




73 


...do . 


.48 











a All measurements on station No. 50 made by the Yolumetric method. 



Discharge measurements of station No. 1 at 2,700-foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 




Dis- 
charge. 



Apr. 29. 
May 24. 



Sec.-ft. 
6.5 



ISLAND OF HAWAII. 155 

Monthly discharge of station No. 1 at 2,700-foot level near Silo, Hawaii, for 191S. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January . . 
February. 

March 

April 

May 

June 

July 1-18. 



160 
28 

146 
60 



(o) 
(o) 



,1 

.4 

.6 

9.0 



19.4 
3.63 
.07 

18.6 
5.14 

25.9 

29.5 



1,190 

130 

1 

1,110 
316 

1,540 

1,050 



The period . 



5,340 



a No flow. 

Discharge measurements of station No. 3 at 2,700-foot level near Eilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr. 29 


Feet. 
0.40 
.11 


Sec.-ft. 
7.02 


May 24 


3.16 






Monthly discharge of station No. 3 at 2,700-foot level near Hilo, Hawaii, for 1913. 



Discharge in second-feet. 



Maximum. Minimum. 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January . . 
February. 

March 

April 

May 

June 

July 1-18. 



15 
5.5 
5.8 

68 

11 

53 

32 



(a) 
(a) 



7.0 



4.7 
2.5 
2.9 
2.7 



10.0 
.75 

1.74 
13.4 

4.70 
11.8 
13.4 



615 

42 
107 
797 
289 
702 
477 



The period . 



3,030 



oNo flow. 

Discharge measurements of station No. 12 at 2,700-foot level near Hilo, Hawaii, in 1913. 

[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr. 29 


Feet. 
1.18 
.99 


Sec.-ft. 
7.5 


May 24 .' 


2.8 







156 WATER EESOtJECES OF HAWAIi, l9lS. 

Monthly discharge of station No. 12 at 2,700-foot level near Hilo, Hawaii, for 19lS. 



January.. 
February. 

March 

April 

May 

June 

July 1-18. 



Tlie period . 



Month. 



Discharge in second-feet. 



Maximum. Minimum. 



34 
2.8 
6.1 

63 
6.1 

57 

53 



2.8 
.3 
.3 
3.0 
2.0 
2.3 
2.2 



12.5 
1.03 
1.47 

12.0 
3.48 

10.9 

13.3 



Run-ofl 
(total in 
acre-feet). 



769 
57 
90 
714 
214 
649 
474 



2,970 



Accu- 
racy. 



Discharge measurements of station No. IS at2J00-foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr. 29 


Feet. 
1.05 
.74 


Sec.-ft. 
9.2 


May 24 


2.25 






Monthly discharge of station No. 13 at 2,700-foot level near Hilo, Hawaii, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January. . 
February. 

March 

April 

May 

Jime 

July 1-18. 



38 
3.9 
11 

54 
9.4 
47 
44 



(a) 



4.5 
.2 

5.1 

2.1 
3.2 
1.9 



12.8 
1.09 
2.94 

12.8 
4.62 

11.3 

13.6 



787 
60 
181 
762 
284 
672 
483 



The period. 



3,230 



o No flow. 
Discharge measurements of station No. 15 at 2,700-foot level near Hilo, Hawaii, in 1911 
[E. O. Christiansen, hydrographer.] 



Date. 



Gage 
height. 



Dis- 
charge. 



Apr. 29. 

May 24.. 



Feet. 
1.26 
1.10 



Sec.-ft. 
3.4 
.64 



ISLAND OP HAWAII. 157 

Monthly discharge of station No. 15 at 2,700-foot level near JSilo, Hawaii, for 191S. 



Month. 


Discharge in second-feet. 


Run-off 
(total in 
acre-feet). 


Accu- 




Maximum. 


Minimum. 


Mean. 




January 


17 
.5 

4.0 
58 

3.3 
25 
29 


0.7 
.2 
(a) 
1.4 
.7 
.8 
.6 


5.78 
.37 
.74 
9.57 
1.31 
4.70 
6.69 


355 
20 
46 

569 
81 

280 

238 


D. 


February 


D. 


March 


D. 




D. 


May 

June 


D. 
D. 


July 1-18 


D. 














1,590 















a No flow. 

Discharge measurements of station No. 27 at 2,700-foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr. 24 


Feet. 
1.63 
1.81 


Sec.-ft. 
4.1 


May 16 '- 


8.4 







Monthly discharge of station No. 27 at 2,700-foot level near Hilo, Hawaii, for 1913. 



Month. 


Discharge in second-feet. 


Run-off 
(total in 
acre-feet). 


Accu- 




Maximum. 


Minimum. 


Mean. 


racy. 




30 
2.3 
4.0 

48 
6.2 

41 

38 


2.3 
.4 
.2 
2.9 
1.2 
1.8 
1.8 


7.93 
1.00 
1.62 
8.61 
2.70 
8.33 
1.02 


488 
56 
100 
512 
166 
496 
365 


D. 




D. 




D. 




D. 




D 


June 


D. 


July 1-18 


D. 






The period 








2,180 















Discharge measurements of station No. 28 at 2,700-foot level near Hilo, Hawaii, in 1913. 
fE. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr. 24 


Feet. 
0.90 
1.85 


Sec.-ft. 
10.0 


May 16 


41.5 







Monthly discharge of station No. 28 at 2,700-foot level near Hilo, Hawaii, for 1913. 



Month. 


Discharge in second-feet. 


Run-off 
(total in 
acre-feet). 


Accu- 




Maximum. 


Minimum. 


Mean. 






176 

6.0 

9.8 

181 

14 

135 

90 


8.0 
.1 
(») 

2.0 
.4 

1.0 
.3 


60.7 
2.45 
1.27 

26.5 
3.06 

19.7 

22.0 


3,730 
136 

78 

1,580 

188 

1,170 

785 


D. 




D. 




D. 




D. 




D. 




D. 


July 1-18 


D. 














7,670 















a No flow. 



158 



WATEE RESOURCES OF HAWAII^ 1913. 



Discharge measurements of station No. 31 at 2,700-foot level near JSilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


height. 


Dis- 
charge. 


Apr. 24 


Feet. 
0.80 
1.05 


Sec.-ft. 
4.76 


May 16 


9.44 







Monthly discharge of station No. 31 at 2, 700 foot level near Hilo, Hawaii, for 1913. 



Month. 


Discharge in second-feet. 


Run-off 
(total in 
acre-feet). 


Accu- 


Maximum. 


Minimum. 


Mean. 


racy. 




52 

2.6 
17 
115 

8.5 
34 
50 


2.6 

.2 

(a) 

3.2 

1.1 

1.7 

.9 


14.0 

.76 

2.23 

18.0 
2.94 
8.05 

11.2 


861 
42 
137 
1,070 
181 
479 
402 


D. 




D. 


March 


D. 


April 


D. 




D. 


June 


D. 


July 1-18 


D. 






The period 








^3,170 















a No flow. 



Discharge measurements of station No. 34 at 2,700-foot level near Hilo, Hawaii, in 1918. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr. 24 


Feet. 
1.07 
1.14 


Sec.-ft. 
0.90 


May 16 


1.90 






Monthly discharge of station No. 34 at 2,700-foot level near Hilo, Hawaii, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January.. 
February. 
March . - . 

April 

May 

June 

July 1-18. 



16 
.6 
2.6 

24 
1.3 
7.1 

10 



0.2 
.2 
.2 
.6 
.3 
.4 
.3 



2.51 
.27 
.47 

3.63 
.63 

1.35 

2.12 



154 
15.0 
28.9 

216 
38.7 
80.3 
75.6 



The period. 



608 



Discharge measurements of station No. 46 at 2,700-foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 



height. 



Dis- 
charge. 



Apr. 24. 
May 15. 



Feet. 
1.62 
1.72 



Sec.-ft. 
9.6 
13.6 



ISLAND OF HAWAII. 159 

Monthly discharge of station No. 46 at 2,700-foot level near Hilo, Hawaii, for 1913. 



Month. 


Discharge in second-feet. 


Kun-ofl 
(total in 
acre-feet). 


Accu- 


Maximum. 


Minimum. 


Mean. 


racy. 




195 
4.4 

16 
188 

46 
104 

82 


5.8 
(o) 

3.0 
4.4 
2.5 


56.4 
1.49 
2.85 

32.4 
9.47 

21.7 

25.4 


3,470 
83 

175 
1,930 

582 
1,290 

907 


D. 


February 


D. 




D. 


April . 


D. 




D. 




D. 


July 1-18 


D. 






The period 








8,440 















a. No flow. 



Discharge measurements of station No. 47 at 2,700 foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 



Gage 
height. 



Dis- 



Apr. 24. 
May 15. 



Feet. 
1.8 
1.8 



Sec-ft. 
3.6 
3.0 



Monthly discharge of station No. 47 at 2, 700 foot level near Hilo, Hawaii, for 1913. 



Month. 



Discharge in second-feet. 



Maximiun. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January.. 
February. 

March 

April 

May 

Jime 

July 1-18. 



The period . 



42 
1.3 
7.0 

25 
5.3 

15 

17 



1.9 


10.6 


.3 


.68 


.2 


1.44 


2.1 


5.51 


1.2 


2.35 


1.4 


5.00 


1.7 


6.29 



652 
38 



328 
144 



Discharge measurements of station No. 52 at 2,700 foot level near Hilo, Hawaii, in 1913. 
[E. 0. Christiansen, hydrographer.] 



Date. 



Gage 
height. 



Dis- 



Apr. 23. 
May 21. 



Feet. 
1.06 
.81 



Sec-ft. 
21.2 
11.8 



160 WATER EESOUECES OF HAWAII, 1913. 

Monthly discharge of station No. 52 at 2,700-foot level near JSilo, Hawaii, for 191S. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-ofl 
(total in 
acre-feet). 



Accu- 
racy. 



January . . 
February. 

March 

April 

May 

June 

July 1-18. 



582 
7.6 

48 
219 

74 
342 
155 



6.2 
1.1 

.4 
16 
6.6 
8.9 

7.4 



3.57 
10.1 
50.1 
17.8 
52.6 
49.5 



5,770 
198 
621 
2,980 
1,090 
3,130 
1,760 



The period . 



15, 500 



Discharge measurements of station No. 54 at 2, 700 foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr. 18 


Feet. 
0.89 


Sec.-fi. 
1.63 







Monthly discharge of station No. 54 at 2, 700 foot level near Hilo, Hawaii, for 1913. 



Month. 



January . . 
February. 

March 

April 

May 

June 

July 1-18 . 



The period. 



Discharge in second-feet. 



Maximum. Minimum. Mean. 



44 




.5 


(a) 


13 


(a) 


28 




3.4 




14 




18 


(a) 



7.39 
.13 
1.32 

5.88 

.80 

2.67 

3.50 



Run-ofl 
(total in 
acre-feet). 



454 
7 

81 
350 

49 
159 
125 



1,230 



Accu- 
racy. 



o No flow. 

Discharge measurements of station No. 62 at 2, 700 foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr. 18 


Feet. 
1.39 
1.09 


Sec.-ft. 
8.6 


May 22 


2.2 






Monthly discharge of station No. 62 at 2, 700 foot level near Hilo, Hawaii, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean. 



Run-off (in 
acre-feet). 



Accu- 
racy. 



January.. 
February. 

March 

April 

May 

June 

July 1-18. 



128 
2.2 

39 
100 

14 

42 

61 



(a) 
(a) 



5.3 
1.5 
1.8 
1.3 



24.6 
9.95 
4.67 

20.5 
3.82 

11.0 

14.2 



The period. 



1,510 
553 
287 

1,220 
235 
655 
505 

4,960 



a No flow. 



ISLAND OF HAWAII. 



161 



Discharge measurements of station No. 68 at 2,700-foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr 18. . . 


Feet. 
1.58 
.98 


Sec.-ft. 
11 


May 22 


3 1 






Monthly discharge of station No. 68 at 2,700-foot level near Hilo, Hawaii, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. 



Minimum. 



Eun-oflE (in 
acre-feet). 



Accu- 
racy. 



January. . 
February. 

March 

April 

May 

June 

July 1-18. 



.5 
7.2 
2.2 
3.0 
2.1 



15.3 
1.76 
5.37 

17.3 
6.02 

11.5 

13.3 



941 
98 
330 
1,030 
370 
684 
474 



The period. 



3,930 



Discharge measurements of station No. 69 at 2,700-foot level near Hilo, Hawaii, in 1913. 

[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr. 18 


Feet. 
0.84 
.70 


Sec.-ft. 
4.3 


May 22 


1.2 






Monthly discharge of station No. 69 at 2,700-foot level near Hilo, Hawaii, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. 



Minimum. 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January . . 
February. 

March 

April 

May 

June 

July 1-18. 



11 

1.7 
10 
22 

3.8 
10 
17 



0.6 
.3 
.2 

2.8 
.8 

1.2 

1.1 



5.25 
.60 
1.85 
7.13 
1.68 
3.70 
4.65 



323 
33 
114 
424 
103 
220 
166 



The period. 



1,380 



Discharge measurements of station No. 74 at 2,700-foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr. 18 


Feet. 
2.06 
1.71 


Sec.-ft. 
12.5 


May 22 


4.0 







97764°— wsp 373—15- 



-11 



162 WATER RESOURCES OF HAWAII^ 1913. 

Monthly discharge of station No. 74 at 2,700-foot level near Hilo, Hawaii, for 191S. 



Month. 


Discharge in second-feet. 


Run-ofE 
(total in 
acre-feet). 


Accu- 


Maximum. 


Minimum. 


Mean. 


racy. 




46 
4.7 
23 
52 
24 
62 
56 


2.9 
.8 
.4 
1.1 
3.1 
4.1 
3.1 


18.2 
2.00 
5.46 

16.9 
7.80 

14.1 

16.5 


1,120 
111 
336 

1,010 
480 
839 
589 


D. 




D. 




D. 




r> 




D. 




D. 


July 1-18 


D. 














4,480 















Discharge measurements of station No. 76 at 2,700-foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr. 23 


Feet. 
1.01 


Sec.-ft. 
1.86 






Monthly discharge of station No. 76 at 2,700-foot level near Hilo, Hawaii, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean. 



Run-oflE 
(total in 
acre-feet). 



Accu- 
racy. 



January.. 
February. 

March 

AprU 

May 

June 

July 1-18. 



10 
1.0 
7.8 
9.3 
2.0 
8.7 

15 



0.6 
.3 
.2 

1.0 
.6 
.7 
.5 



3.90 



1.15 
2.60 



1.96 
2.32 



240 

26.6 

70.7 
155 

60.3 
117 

82.8 



The period . 



752 



Discharge measurements of station No. 79 at 2,700-foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr. 23 


Feet. 
0.93 


Sec.-ft. 
0.83 







ISLAN^D OP HAWAII. 163 

Monthly discharge of station No. 79 at 2,700-fooi level near Hilo, Hawaii, for WIS. 



Month. 



Discharge in second-feet. 



Maximum. MiniTnuTn , Mean, 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January... 
February. 

March 

April 

May 

June. 

July 1-18. 



2.5 
.2 
2.3 
3.2 
.9 
2.4 
3.7 



0.2 
.1 
.1 
.1 
.2 
.2 
.2 



1.06 
.15 
.37 

1.08 
.37 
.75 
.93 



65.2 
8.3 
22.8 
64.3 
22.8 
44.6 
33.2 



The period. 



261 



Discharge measurements of station No. 80 at 2, 700 foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 



height. 



Dis- 



Apr. 23. 

May 22. 



Feet. 
1.22 
.87 



Sec.-ft. 
1.71 
.52 



Monthly discharge of station No. 80 at 2, 700 foot level near Hilo, Hawaii, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



Run-ofl 
(total in 
acre-feet). 



Accu- 
racy. 



January.. 
Pebruary. 

March 

April 

May 

June 

July 1-18. 



3.6 
.6 
3.7 
4.0 
1.6 
3.6 
4.5 



8i 



0.5 



1.0 

.4 
.5 
.4 



2.04 
.38 
.67 

2.30 
.81 

1.52 

1.81 



125 
21.1 
41.2 

137 
49.8 
90.4 
64.5 



The period. 



529 



a No flow. 

Discharge measureTuents of station No. 81 at 2,700-foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr. 23 


Feet. 
1.00 
.69 


Sec.-ft. 
4.1 


May 23 


1.9 







164 WATEE RESOURCES OF HAWAII^ 1913. 

Monthly discharge of station No. 8t at 2,700-foot level near Eih, Hawaii, for 1913. 



Month. 


Discharge in second-feet. 


Run-off 
(total in 
acre-feet). 


Accu- 


Maximum. 


Minimum. 


Mean. 


racy. 




12 

1.4 
11 
15 

7.0 
21 
38 


1.0 
.2 
.1 
3.3 
1.0 
1.3 
3.3 


5.98 
.59 
2.19 
7.01 
2.44 
7.80 
11.2 


368 
33 
135 
417 
150 
464 
399 


D. 




D 




D. 




D 




D. 




D. 


July 1-18 


D. 














1,970 















Discharge measurements of station No. 85 at 2,700-foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr 23 


Feet. 
0.88 
.79 


Sec.-ft. 
1.90 


May 23 


.77 






Monthly discharge of station No. 85 at 2,700-foot level near Hilo, Hawaii, for 1913. 



Month. 



Discharge in second-feet. 



,ximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January.. 
February. 

March 

April 

May 

June 

July 1-18. 



6.9 
3.0 
7.5 

13 
2.8 
7.3 

14 



1.7 

.7 



1.6 

.5 



4.07 
1.37 
2.09 
4.78 
1.06 
2.37 
3.68 



250 
76 
129 
284 
65 
141 
131 



The period. 



1,080 



Discharge measurements of station No. 86 at 2,700-foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Apr.23 


Feet. 
1.70 
1.56 


Sec.-ft. 
5.1 


May 23 


1.6 







ISLAND OF HAWAII. 165 

Monthly discharge of station No. 86 at 2,700-foot level near Eilo, Hawaii, for 1913. 





Discharge in second-feet. 


Run-off 
(total in 
acre-feet). 


Accu- 




Maximum. 


Minimum. 


Mean. 


racy. 




12 

3.2 
12 
19 

9.3 
19 
20 


2.3 
.5 
.1 
4.0 
1.4 
1.7 
1.7 


6.93 
1.68 
2.81 
8.07 
2.76 
5.66 
6.79 


426 
88 
173 
480 
170 
337 
242 


D. 


February . 


D. 




D. 




D. 


May 


D. 


June. 


D. 


July 1-18 


D. 














1,920 















Discharge 'measurements of station No. 87 at 2,700-foot level near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
hei^t. 


Dis- 
charge. 


April 23 


Feet. 
1.30 
1.04 


Sec.-ft. 
1.39 


May 23 


.91 






Monthly discharge of station No. 87 at 2,700-foot level near Hilo, Hawaii, for 1913. 



Month. 



January . . 
February. 

March 

April 

May 

June 

July 1-18. 



The period. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



5.5 
2.2 
4.7 
7.9 
3.8 
8.1 
10 



0.7 
.4 
.3 

1.8 
.7 

1.0 
.9 



2.80 
.74 
1.19 
3.77 
1.61 
2.93 
3.52 



Run-off 
(total in 
acre-feet). 



172 
41 
73 

224 
99 

174 

126 



909 



Accu- 
racy. 



166 



WATER RESOURCES OF HAWAII, 1913. 
WAILUKU RIVER NEAR HILO, HAWAn. 



Location. — ^About 1^ miles west of Hilo, a short distance above Hilo Electric Light 

Co. intake. 
Records available.— March 21, 1911, to July 21, 1913. 
Gage. — Barrett & Lawrence water-stage recorder. 
Control. — Probably slightly shifting. 
Discharge measurements. — Made from cable. 
Accuracy. — Records good for January and June; for other months only fair. 

Discharge measurements of Wailuku River near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrograplier.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge. 


Jan. 9 


Feet. 
8.00 
5.50 
5.23 
6.04 
6.25 


Sec.-ft. 

703 
55.4 
32.5 

209 

254 


May 6 


Feet. 
5.68 
5.64 
7.55 
6.00 
7.54 


Sec.-ft. 
157 


Mar.7 


May 20 


152 


Mar. 13 


June 17 


523 


Apr. 7 


June 25 ; 


1'97 


Apr. 26 


July7 


567 









Daily discharge, in second-feet, of Wailuku River near Hilo, Hawaii, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1 


484 
364 
325 
265 
225 

195 

187 

1,290 

1,040 

1,250 

3,350 
1,170 
2,100 
3,090 
3,700 

1,620 
1,200 
814 
1,630 
1,450 

1,400 

1,180 

700 

525 

418 

347 
283 
236 
203 
172 
145 


127 
116 
104 
91 
87 

84 
89 
84 
78 
69 

64 
60 
62 
48 
44 

58 
84 
62 
50 
48 

44 
38 
38 
35 
34 

34 
33 
54 


88 
93 
84 
71 
66 

62 
122 
98 
84 
70 

69 
53 
107 
104 

57 

41 
43 
95 
127 
80 

59 
140 
166 
84 
66 

55 
50 
203 
219 
145 
568 


350 
323 
228 
165 
133 

201 
216 
148 
171 

187 

140 

611 

1,620 

3,110 

834 

630 
484 
378 
314 
264 

254 
269 
236 
203 
276 

246 
348 
273 
228 
211 


190 
250 
306 

254 
187 

165 
134 
116 
112 
106 

94 

85 

82 

103 

139 

426 
250 
326 
200 
160 

121 
98 
84 
84 
84 

82 
79 
78 
79 
78 
78 


94 
84 
100 
97 

87 

76 
72 
78 
80 
76 

69 

73 

9,400 

6,140 

3,110 

1,260 
568 
403 
314 
254 

203 
176 
158 
219 
203 

180 
139 
127 
152 

187 


700 


2 


657 


3 


568 


4 .. 


479 


5 


364 


6 


855 


7 .. 


614 


8 


426 


9 


316 


10.. 


264 


11.. 


222 


12 


206 


13 


206 


14 


162 


15 


139 


16 


117 


17 


107 


18 


97 


19 


88 


20 


85 


21 


101 


22 . . 




23 




24 . . 




25 




26 




27 . . 




28 




29. . 




30 




31 











ISLAND OF HAW An. 167 

Monthly discharge of Wailuku River near Hilo, Hawaii, for 1913. 



Montli. 



Discharge in second-feet. 



Maximum. Minimum. Mean 



Run-off 
(total in 
acre-feet). 



Accu- 
racy. 



January.. 
February. 

March 

April 

May 

June 

July 1-21. 



3,700 
127 
568 

3,110 
426 

9,400 
855 



145 
33 
41 

133 

78 
69 
85 



1,010 
64.6 
109 
432 
149 
806 
322 



62,100 
3,590 
6,700 

25, 700 
9,160 

48,000 

13,400 



The period. 



169,000 



HONOLII RIVER AT KATWIKI, NEAR HILO, HAWAII. 

Location. — About one-half mile north of Kaiwiki and 6 miles west of Hilo. 

Records available. — ^June 1, 1911, to March 24, 1913. 

Gage. — Barrett & Lawrence water-stage recorder. 

Control. — Probably slightly shifting. 

Discharge measurements. — Made from footbridge. 

Accuracy. — Records good. 

Discharge measurements of Honolii River at Kaiwiki, near Hilo, Hawaii, in 1913. 
[E. O. Christiansen, hydrographer.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Jan. 31 


Feet. 
5.10 
5.11 


Sec.-ft. 
18.1 


Mav31 


19.4 







Daily discharge, in second-feet, of Honolii River at Kaiwiki, near Hilo, Hawaii, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Day. 


Jan. 


Feb. 


Mar. 


1 


153 

86 
79 
56 
43 

42 

48 

430 

315 

299 

724 
196 
512 
840 
660 


16 
15 
12 
11 
11 

16 
30 
17 
13 
11 

11 

11 

10 
8.6 
8.6 


3.4 
3.4 
3.0 
3.0 

2.8 

2.8 
8.6 
6.2 
3.8 
2.8 

2.4 
2.0 
1.8 
2.0 

18 


16 


238 
182 
155 
358 
318 

268 

202 

108 

83 

65 

48 
38 
32 
27 
24 
17 


18 
40 
18 
14 
11 

9.4 
9.0 
7.0 
7.0 
7.0 

5.0 
3.0 
3.0 


12 


2 


17 


30 


3 


18 


86 


4 


19 


110 


5 


20 


37 


6 


21 


23 


7 


22 


103 


8 


23 


80 


9 


24 


35 


10 


25 




11 


26 




12 .... 


27 ... 




13 


28 




14 


29 




15 


30 








31 















Monthly discharge of Honolii River at Kaiwiki, near Hilo, Hawaii, for 1913. 



Month. 



Discharge in second-feet. 



Maximum. 



Minimum. 



Mean. 



Run-off 
(total in 
acre-feet). 



January . . . 
February . . 
March 1-24 



842 
50 
110 



17 
3.0 
1.8 



214 
12.6 
24.2 



13,200 

700 

1,150 



168 



WATEE KESOUKCBS OF HAWAII, 1913. 



HAMAKUA GROUP. 
HAMAKITA DITCH AT MAIN WEIR, PUUALALA, NEAR WAIMEA, HAWAII. 

Location. — Near head of ditch in Lalakea tract, adjacent to forest reserve and close 
to Kaala Mountain and Pacific Sugar Mill fence. This ditch diverts all run-off 
from upper headwaters of Waipio. 

Records available. — ^January 1 to December 31, 1913. 

Gage. — ^Water-stage recorder. 

Discharge. — Measured by weir consisting of two 5-foot panels, sharp crested, and 
with good BtilUng basin above. 

Discharge, in million gallons per day, of Hamakua ditch at main weir, at Puualala 

Waimea, Hawaii, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 . 


3.35 
2.11 
4.21 
2.89 
2.53 

1.45 
1.04 
.85 
1.04 
3.70 

2.66 
1.67 
23.0 
24.6 
18.8 

6.38 
2.84 
1.56 
1.26 
.95 

.74 
1.11 
.95 
.68 
.68 

.40 
.46 
.55 
.37 
.30 
.24 


1.07 
.87 
.44 
.32 
.24 

12.1 
11.0 
2.66 
1.45 
.83 

.65 

.52 

.39 

4.26 

4.89 

1.46 
7.49 
10.9 
20.6 
10.4 

10.2 
8.62 
3.54 
1.55 
2.58 

13.8 
3.12 
1.37 


0.96 
.68 
.54 
.39 
.32 

.26 
.26 
.20 
.18 
.18 

.13 

.13 

.04 

5.61 

2.34 

5.78 
8.78 
4.43 
4.97 
2.94 

11.9 

16.7 
4.78 
3.37 
4.06 

2.40 
4.43 
24.6 
11.1 
13.9 
16.2 


8.42 
7.62 
3.86 
6.72 
3.42 

5.09 
8.37 
2.80 
9.15 
8.02 

20.5 
24.9 
22.9 
15.6 
10.4 

10.6 
10.5 
10.7 
8.41 
5.03 

4.36 
5.74 
7.46 
5.95 
8.01 

4.65 
7.22 
8.02 
3.82 
2.58 


2.21 
3.84 
6.25 

5.54 
2.94 

1.56 
.93 
.64 
.61 
.52 

.44 
6.21 

11.1 
3.72 

12.0 

17.0 
10.7 
12.8 
17.9 
6.59 

2.64 
1.53 
1.42 
1.57 
2.68 

20.3 
13.6 
18.3 
13.7 
6.22 
3.60 


2.09 
6.24 
7.70 
2.55 
1.53 

1.14 
1.75 
4.45 
4.96 
7.32 

3.99 
12.7 
25.2 
20.5 
24.8 

16.9 
12.5 
4.45 
2.90 
2.25 

1.62 
1.37 
6.43 
8.64 
3.94 

6.67 
23.4 
27.5 
23.4 
22.3 


18.3 
16.5 
12.7 
13.4 

8.78 

26.8 
20.9 
18.5 
8.55 
6.91 

9.86 
16.2 
16.8 
13.8 

8.93 

8.73 
12.7 
11.0 
5.16 
6.08 

10.1 
15.7 
6.47 
3.70 
3.40 

6.45 
2.84 
5.28 
3.04 
1.68 
1.45 


1.05 
11.8 
11.0 
2.73 
1.39 

.85 

.64 

.64 

1.31 

1.45 

7.51 
21.3 
21.2 
11.3 
19.0 

6.85 
2.77 
1.57 
1.08 
.83 

.92 
1.45 

.95 
1.16 
1.14 

.68 
.62 
1.20 
2.74 
10.7 
5.04 


2.66 
9.14 
10.2 
5.76 
2.30 

1.79 
16.2 
5.75 
2.50 
12.2 

7.36 
11.6 
9.53 
3.61 
3.52 

1.69 

3.87 
14.8 
9.65 
5.27 

2.79 

1.32 

.68 

.52 

.61 

.60 
.30 
.26 
.32 
.30 


0.37 
.30 
.22 
.18 
.15 

.23 

.32 

.99 

1.32 

.74 

.37 
.13 
.13 
.71 

2.88 

6.26 

1.71 

.60 

.24 

1.60 

2.50 

1.34 

1.87 

.95 

.37 

.15 
.86 
.56 


'29 .'2"" 

22.7 

8.51 

3.24 
1.68 

.98 
18.7 
20.6 

16.1 
22.1 
17.1 
10.0 
6.32 

18.5 
24.9 
30.0 
15.0 
12.3 

13.5 
13.2 
9.60 
14.1 
14.6 

12.5 

10.3 
3.90 
2.00 
1.68 


1.25 


2 


.95 


3 


1.08 


4 


5.06 


5 


25.3 


6 . 


19.8 


7 


9.33 


8 


4.55 


9 


3.50 


10 


2.27 


11 


1.60 


12 


1.91 


13 


1.47 


14 


4.11 


15 


24.6 


16 


17.1 


17 


14 8 


18 


13 5 


19. . . . 


6 56 


20 


3 21 


21 


2 03 


22 


1 56 


23 


13 3 


24 


4 13 


25 


1 79 


26 


1 25 


27 


85 


28 


70 


29 


52 


30 


40 


31 


.30 













Note.— No discharge Oct. 29 to Nov. 2. 
Monthly discharge of Hamakua ditch at main weir, Puualala, Waimea, Hawaii, for 1913. 



Month. 


Discharge 


in million gallons per 
day. 


Run-off 
(total in 




Maximum. 


Minimum. 


Mean. 


acre-feet). 


January 


24.6 
20.6 
24.6 
24.9 
20.3 
27.5 
26.8 
21.3 
16.2 
6.26 
30.0 
25.3 


0.24 
.24 
.04 

2.58 
.44 

1.14 

1.45 
.62 
.26 
.13 
.98 
.30 


3.66 
4.90 
4.92 
8.69 
6.74 
9.70 

10.3 
4.93 
4.90 
1.00 

13.3 
6.09 


348 


February 


422 


March 


468 


April 


800 


May 


641 


June 


893 


July 


980 


August 


469 


September 


451 


Octoberl-28 


86 


November 3-30 


1,140 
579 


December 






The period 








7,300 











ISLAND OF HAWAII. 



169 



NEW HAMAKUA DITCH AT MAIN WEIR NEAR ETJKTJIHAELE, HAWAII. 

Location. — Near head of ditcli, about 500 feet south of office of Hawaiian Irrigation 

Co. (Ltd.), at Kukuihaele. 
Records available. — ^July 18, 1910, to December 31, 1913. 
Gage. — Water-stage recorder. 
Discharge. — ^Measured by weir consisting of six 5-foot panels, sharp crested, and 

with a good stilKng basin above. Discharge measurements made in ditch below 

weir have checked weir discharge to within 2 per cent. 
Diversion.- — Ditch diverts all run-off from headwaters of Waipio basin below the 

upper Hamakua ditch. 
Cooperation. — Daily-discharge record furnished by the Hawaiian Irrigation Co. 

(Ltd.). 

Discharge, in million gallons per day, of New Hamakua ditch at main weir, Kukuihaele, 

Hawaii, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


32.3 
30.5 
31.1 
30.9 
30.7 

29.9 
29.3 

28.7 
28.7 
30.3 

29.5 
28.7 
33.6 
34.8 
34.8 

34.6 
32.1 
30.5 
29.9 

28.7 

29.0 
29.5 
29.0 
28.1 
27.9 

26.4 
26.6 
26.9 
26.1 
26.0 
25.7 


27.1 
27.3 
25.5 
26.0 
25.9 

31.5 
34.9 
30.0 
27.9 
26.6 

26.7 
26.6 
25.8 
27.9 
29.6 

26.9 
29.4 
33.9 
35.0 
34.1 

34.3 
34.2 
29.8 
28.3 
27.0 

33.0 
28.6 

27.4 


26.7 
26.3 
26.0 
26.0 
25.9 

25.6 
25.5 
25.3 
25.4 
24.8 

24.8 
24.7 
24.6 
26.2 
26.1 

26.9 
32.5 
28.2 
27.9 
26.1 

29.7 
37.0 
30.2 
27.5 
29.8 

27.1 
27.2 
35.7 
35.8 
34.7 
36.1 


34.6 
33.1 
30.7 
31.5 
29.6 

29.1 
32.8 
28.9 
31.3 
32.9 

34.1 
34.9 
34.7 
34.1 
34.8 

34.8 
34.7 
34.1 
34.1 
33.7 

33.3 
34.7 
34.1 
33.4 
32.6 

32.3 
33.9 
34.0 
31.5 
30.2 


29.1 
32.3 
34.0 
32.1 
29.7 

27.9 
27.3 
26.8 
26.2 
26.2 

25.6 
27.9 
33.4 
29.1 
31.3 

33.0 
35.4 
33.7 
34.6 
32.7 

29.1 
27.3 
28.3 
28.5 
27.9 

35.2 
35.2 
34.6 
34.6 
31.3 
29.9 


28.7 
30.7 
32.9 
29.3 
27.5 

26.9 
27.5 
28.9 
28.9 
29.9 

27.5 
30.4 
34.1 
34.4 
34.4 

34.4 
34.2 
32.3 
30.3 
29.4 

28.3 
27.7 
29.7 
33.1 
29.2 

29.3 
34.6 
34.4 
34.4 
34.2 


41.4 
42.2 
38.5 
38.9 
33.4 

42.0 
42.0 
42.0 
38.9 
36.6 

36.5 
42.2 
42.0 
40.9 
36.1 

44.2 
38.7 
38.8 
33.6 
34.4 

36.3 
40.1 
34.9 
31.7 
30.7 

33.0 
30.0 
31.1 
29.7 
28.8 
28.0 


26.0 
32.3 
37.2 
30.4 
27.5 

26.7 
26.2 
27.6 
28.1 
28.1 

31.6 
43.5 
51.7 
41.4 
52.1 

37.2 
32.5 
30.3 
29.0 
28.9 

12.9 
29.2 
28.5 
29.0 
28.3 

27.7 
27.7 
27.9 
30.1 
34.7 
31.9 


28.6 
32.7 
41.5 
34.0 
30.4 

29.4 
42.7 
34.2 
30.8 
39.2 

35.9 
38.5 
38.1 
31.0 

29.8 

28.4 
28.8 
43.1 
38.9 
31.7 

29.4 
27.8 
27.0 
26.2 
26.0 

25.8 
25.8 
25.6 
25.5 
25.5 


25.7 
25.2 
25.0 
24.9 

24.8 

25.3 
25.1 
25.1 
25.2 
24.6 

24.6 
24.6 
24.6 
26.0 
28.5 

30.9 
27.0 
25.4 
24.3 
26.1 

29.1 
26.3 
26.8 
25.9 

24.8 

24.2 
24.6 
24.8 
24.2 
23.9 
23.9 


23.9 
23.7 
43.8 
41.5 
38.2 

33.4 
30.9 
29.7 
34.7 
34.2 

33.9 
34.2 
34.0 
34.2 
33.6 

34.7 
34.7 
33.8 
34.2 
34.4 

34.3 
34.0 
34.9 
34.6 
34.0 

34.1 
34.4 
33.8 
32.0 
31.2 


30 6 


2 


30.2 


3 


30 1 


4 


32 1 


5 


34.2 


6 


33.7 


7 


34 


8 


34 


9 


34.0 


10 


34 


11 


32 7 


12 


33.3 


13 


32 2 


14 


32.2 


15 


34.4 


16 


34.8 


17 


34 2 


18 


34.0 


19 


34.0 


20 


34.2 


21 


33.1 


22 


32.1 


23 


34.0 


24 


33.5 


25 


32.0 


26 


31.3 


27 


30.9 


28 


30.5 


29 


30.1 


30 


29.6 


31 


29.0 







170 

Monthly 



WATER RESOURCES OP HAWAII, 1913. 

'e of New Hamakua ditch at main weir, near Kuhuihaele, Hawaii, for 1913. 



Montli. 



Discharge 


in million gallons per 






day. 




Run-off 
(total in 








acre-feet). 


Maximum. 


Minimum.. 


Mean. 




34.8 


25.7 


29.7 


2,830 


35.0 


25.5 


29.3 


2,520 


37.0 


24.6 


28.3 


2,692 


34.9 


28.9 


33.0 


3,040 


35.4 


26.2 


30.7 


2,920 


34.6 


26.9 


30.9 


2,840 


44.2 


28.0 


36.7 


3,490 


52.1 


12.9 


31.5 


3,000 


43.1 


25.5 


31.7 


2,920 


30.9 


23.9 


25.5 


2,430 


43.8 


23.7 


33.8 


3,110 


34.8 


29.0 


32.5 


3,090 


52.1 


12.9 


31.1 


34,900 



Accu- 
racy. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

The year 



KOHALA GROUP. 
EOHALA DITCH NEAR EOHALA, HAWAII. 

Location of -weirs. — The Kohala Ditch Co. (Ltd.) maintains three weirs which 
measure the discharge carried by the Kohala ditch. The Awini weir is on the 
southeast side of the east branch of Honokanenui Gulch at an elevation of 1,880 
feet. The Niulii weir is about 3J miles south of Niulii, Kohala district, at an 
elevation of 1,000 feet, and about 5 miles below the Awini weir. The Hawi weir 
is about IJ miles south of the Hawi mill near the lower end of the ditch. 

Records available.^ — Daily records at Awini and Niulii weirs kept by Kohala Ditch 
Co. July 1, 1907, to December 31, 1913. No record of flow at Hawi weir, which has 
been used mainly as a check on deliveries of water between Niulii and Hawi. 
The Niulii weir measures the amount of water shown by the Awini weir and also 
the inflow from the Honokanenui. The record for the Honokenenui is derived by 
subtracting the flow at the Awini weir from the flow at the Niulii weir. 

Gages.^ — Vertical staffs graduated to hundredths. 

Discharge ineasiirenients.— Each weir consists of three 5-foot panels with end 
contractions, sharp-beveled steel crest, and with very slight velocity of approach. 

Diversion. — Ditch diverts and delivers to the plantations on the north coast of Hawaii 
all low-water run-off between the Honokane Gulch and the northwest point of 
the island below the 2,000-foot contour. 

Cooperation. — Daily-discharge record furnished by Kohala Ditch Co. (Ltd.). 



ISLAHD OF HAWAII. 



Ill 



Discharge, in million gallons per day, of Kohala ditch at Awini weir, near Kohala, 

Hawaii, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1 


12.5 
11.0 
11.0 
10.5 
11.0 

10.5 
8.8 
9.8 
10.5 
12.5 

10.5 
10.5 
20.7 
20.7 
20.7 

13.0 
12.5 
11.0 
9.8 
9.8 

8.4 
8.4 
7.9 
7.9 
5.2 

5.2 
5.2 
4.8 
4.8 
4.8 
4.8 


9.3 
9.8 
7.9 
6.2 
4.4 

10.5 
14.1 
9.8 
7.9 
4.4 

4.4 
3.3 
3.3 
9.3 

8.4 

6.6 
11.0 
11.5 
14.1 
11.5 

8.8 
8.8 
8.4 
6 6 
6.6 

14.1 
8.4 
6.6 


4.8 
4.0 
3.3 
3.7 
3.7 

3.7 
3.7 
3.7 
3.3 
3.0 

2.7 
2.7 
2.4 
2.4 
2.7 

2.7 
2.7 
3.3 
3.3 
3.3 

7.5 
12.5 
7.9 
4 8 
4.0 

4.0 
3.3 
12.0 
10.5 
7.5 
12.5 


12.5 
11.5 
8.4 
6.2 
6.2 

7.5 
9.3 
6.2 

5.2 
7.5 

12.5 
15.7 
15.7 
15.7 
15.7 

15.7 
14.6 
15.7 
14.6 
14.6 

12.5 
11.5 
12.0 
9.8 
10.5 

9.8 
14.6 
13.0 
10.5 

9.3 


7.5 
8.8 
8.8 
7.5 
7.5 

7.0 
6.6 
5.2 
4.4 
4.4 

4.4 
6.6 
15.7 
15.7 
15.7 

14.6 
14.6 
11.5 
10.5 

8.8 

7.5 
6.2 
4.4 
4.0 
4.0 

12.0 
15.7 
12.0 
13.6 
10.5 
7.5 


2.3 

""2."i' 
6.2 
6.2 

4.0 
4.8 
5.8 
5.8 
5.8 

5.2 

5.2 

20.7 

20.7 

20.7 

16.3 
13.6 
9.8 
9.3 
6.6 

6.6 
5.2 
4.8 
5.2 
4.8 

4.8 
14.6 
20.7 
20.7 
20.7 



16.9 
19.5 
16.9 
14.6 
12.5 

20.7 
20.7 
16.9 
14.6 
12.0 

10.5 
14.6 
16.9 
14.6 
14.6 

12.5 
10.5 
8.4 
8.4 
7.5 

6.6 
7.9 
7.5 
6.6 
5.8 

6.2 
5.8 
5.8 
5.2 
4.4 
4.4 


3.3 

4.4 
8.4 
6.2 

5; 8 

5.2 
4.0 
4.0 
3.3 
4.0 

4.0 
16.9 
20.7 
20.7 
16.9 

15.2 
12.5 
7.5 

5.8 
4.8 

4.8 
4.0 
3.3 
2.7 
4.0 

2.1 
2.1 
2.1 
2.1 

5.8 
5.8 


5.2 
3.7 
4.8 
4.8 
3.7 

3.0 
6.2 
6.2 
5.2 
6.2 

7.9 
7.0 
7.9 
6.2 

4.8 

4.0 
3.7 
7.9 
11.5 
7.0 

5.2 
4.4 
3.3 
2.7 

1.8 

1.8 
1.8 
1.2 
1.2 
1.2 


0.9 
.9 
.9 
.9 
.5 

.5 

.5 

1.5 

1.2 

2.1 

1.5 
.9 
.7 
.5 
.5 

1.5 

1.2 

.9 

.7 
.5 

.5 
.5 
.5 
.5 
.5 

.5 
.3 
.2 


"ii'.h 

18.3 
13.6 

10.5 

7.0 

5.2 

20.1 

20.1 

20.1 
20.1 
15.2 
12.0 
10.5 

12.0 
20.1 
20.1 
20.1 
16.3 

20.1 
14.6 
13.6 
13.6 
12.5 

12.5 
11.0 

9.8 
8.4 
7.5 


6.6 


2 


9.8 


3 


9.8 


4 


10.5 


5 


20.7 


6 


20.7 


7 


20.7 


8 


20.7 


9 


20.1 


10 


19.5 


11 


16.9 


12 


14.1 


13 


12.5 


14 


11.5 


15 


20.7 


16 


20.7 




20.7 


18 


20.7 




16.9 


20 


14.1 


21 


12.5 




10.5 


23 


15.7 


24 


14.1 


25 . .. 


12.5 


26 


10.5 




9.8 


28 


7.9 




6.6 


30 


6.2 


31 


6 2 













Note.— No record June 2, Oct. 29 to Nov. 2. 

Monthly discharge of Kohala ditch at Awini weir, near Kohala, Hawaii, for 1913. 



Month. 



Discharge in million gallons per 
per day. 



Maximum. Minimum. Mean, 



Run-ofE 
(total in 
acre-feet). 



January 

February 

March 

April 

May 

June 1,3-30 

July 

August 

September 

October 1-28... 
November 3-30. 
December 



20.7 
14.1 
12.5 
15.7 
15.7 
20.7 
20.7 
20.7 
11.5 
2.1 
20.1 
20.7 



The period. 



4.8 
3.3 
2.4 
5.2 
4.0 
2.1 
4.4 
2.1 
1.2 
.2 
5.2 
6.2 



10.1 
8.39 
4.89 

11.5 
9.14 
9.63 

11.3 
6.85 
4.72 
.80 

14.2 

14.2 



961 
721 
465 

1,060 
870 
857 

1,080 

652 

435 

69 

1,220 

1,340 

9,730 



172 



WATER EESOUECES OF HAWAII, 1913. 



Discharge, in million gallons 'per day, of Kohala ditch at Nuilii weir, near Kohala, 

Hawaii, for 1913. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dee. 


1 


12.8 
12.6 
12.6 
11.6 
12.6 

11.5 
9.9 
10.6 
12.3 
13.6 

10.6 
11.5 
5.5 
6.8 
6.8 

13.1 
11.9 
11.8 
10.6 
10.6 

10.4 
10.4 
10.1 
10.1 
10.6 

10.6 
10.6 
9.9 
9.9 
9.9 
9.9 


11.1 
11.4 
10.1 
10.6 
10.8 

13.9 
13.3 
11.4 
10.1 
10.3 

10.3 
9.2 
9.9 
10.3 
10.4 

10.6 
12.6 
13.8 
13.3 
13.0 

12.3 
12.3 
11.2 
9.9 
9.9 

13.3 
11.2 
10.6 


9.2 
9.2 
8.5 
8.9 
8.9 

8.9 
8.9 
8.9 
8.5 
8.2 

7.9 
7.9 
7.5 
7.5 
7.9 

7.9 
7.9 
8.5 
8.6 
8.5 

10.5 
14.9 
10.1 
9.9 
9.2 

9.2 
9.2 
13.3 
13.1 
12.1 
15.8 


12.8 
12.1 
11.2 
11.8 
11.8 

11.3 
11.1 
9.6 
9.5 
11.3 

13.6 
11.7 
11.7 
11.7 
11.7 

11.7 
12.8 
11.7 
12.8 
12.8 

13.6 
12.1 
12.4 
12.2 
12.3 

12.2 
12.8 
13.1 
12.3 
12.7 


11.3 
13.1 
13.1 
11.3 
11.3 

11.0 
10.6 
10.6 
10.3 
10.3 

10.3 
13.0 
11.7 
11.7 
11.7 

12.8 
12.8 
16.0 
16.9 
14.8 

12.9 
10.3 
10.3 
9.2 
9.2 

12.4 
11.7 
12.4 
13.9 
11.5 
10.5 


6.3 

""4.'6' 
11.1 
11.1 

9.9 
9.9 
10.0 
10.0 
10.0 

9.5 
9.6 
6.8 
6.8 
6.8 

11.1 
13.9 
10.6 
10.3 
9.1 

10.6 
11.3 
9.9 
11.3 
11.0 

9.9 
9.8 
6.8 
6.8 
6.8 


10.6 
8.0 
10.6 
12.8 
14.9 

6.8 
6.8 
10.6 
12.8 
12.4 

11.5 
12.8 
10.6 
12.8 
12.8 

10.3 
11.5 
13.6 
12.8 
12.1 

12.2 
14.0 
14.5 
13.0 
10.7 

12.6 
11.5 
11.5 
12.1 
11.3 
11.3 


9.9 
10.2 
12.0 
11.8 
11.5 

10.6 
9.2 
9.2 
9.2 
9.2 

9.2 
10.6 
6.8 
6.8 
10.6 

12.3 
12.8 
12.1 
10.7 
9.9 

9.9 
9.2 
9.2 
9.2 
9.2 

9.1 

8.5 
8.5 
9.1 
10.0 
10.0 


9.5 
8.2 
8.5 
8.5 

8.2 

8.2 
10.3 
11.1 
10.6 
11.1 

14.0 
11.7 
11.6 
9.6 
8.5 

7.8 

7.5 

14.0 

16.0 

10.2 

8.8 
8.1 
7.2 
7.2 
6.9 

7.5 
6.9 
6.5 

7.4 
7.4 


6.8 
6.3 
6.3 
6.8 
7.3 

7.3 
6.7 
7.1 
7.4 
14.4 

8.4 
9.0 
8.0 
7.3 
7.3 

6.2 
6.5 
6.8 
7.1 
7.3 

7.3 

7.3 
7.3 
8.2 
8.2 

6.7 
6.8 
7.0 
6.6 
6.6 
6.6 


6.0 
6.0 

14.7 
9.1 

13.9 

10.6 
9.5 
8.1 
6.1 
7.4 

7.4 

7.4 

12.3 

13.3 

11.6 

11.6 

7.4 

7.4 

7.4 

11.1 

7.4 
12.8 
13.9 
13.9 
14.9 

14.9 
16.5 
13.8 
12.8 
11.3 


9.9 


2 


13.0 


3 


12.2 


4 


13.1 


5 


6.8 


6 


6.8 


7 


6.8 


8 


6.8 


9 . . .. 


7.4 


10 


8.0 


11 


10.6 


12 


13.3 


13 


14.9 


14 


16.0 


15 


6.8 




6.8 


17 


6.8 


18 

19 


6.8 
10.6 


20 


13.3 


21 

22 


14.9 
15.6 


23.. . 


11.7 


24 


13.3 


25 


12.8 


26 


13.1 


27 


12.2 


28 


11.6 


29.. 


11.4 


30 


11.1 


31 


11.1 







Note. — ^No discharge June 2. 
Monthly discharge of Kohala ditch at Nuilii weir, near Kohala, Hawaii, for 1913. 



Month. 



Discharge ia million gallons per 
day. 



Maximum. Minimum. Mean. 



Run-off 
(total in 
acre-feet). 



January 

February 

March 

April 

May 

June 1, 3-30 

July 

August 

September 

October 

November 

December 

The period (364 days) 



13.6 
13.9 
15.8 
13.6 
16.9 
13.9 
14.9 
12.8 
16.0 
14.4 
16.6 
15.6 



15.8 



5.5 
9.2 
7.6 
9.6 
9.2 
4.0 
6.8 
6.8 
6.5 
6.2 
6.0 
6.8 



4.0 



10.7 
11.3 
9.53 
12.0 
11.9 
9.34 
11.7 
9.89 
9.30 
7.38 
10.7 
10.8 



10. < 



1,020 
971 
907 

1,100 

1,130 
831 

1,110 
941 
856 
702 
985 

1,030 



11,600 



ISLAND OF HAWAII. 



173 



KEHENA DITCH AT HONOKANE MAUKA, NEAR NORTH KOHALA, HAWAU. 

Location of weirs. — On 22 streams in Kehena district, beginning at head of Hono- 
kane Gulcli and extending northeast about 8 miles in Kohala Mountains, at 
elevation of 4,200 to 3,000 feet. 

Records available.— April 1, 1912, to March 31, 1913. 

Gages. — Vertical staffs; read once daily. 

Discharge. — Determined by means of sharp-crested weirs with end contractions. 

Diversion. — Ditch diverts most of the water above 2,000-foot contour. 

Cooperation.- — Daily-discharge record furnished by Kohala Ditch Co. (Ltd.). 

Cortibined daily discharge, in million gallons per day {weirs 1 to 22), of 22 streams supply- 
ing Kehena ditch at JSonokane Mauka, North Kohala, Hawaii, Apr. 1, 1912, to Mar. 31, 
1913. 



Day. 



Apr. May. Jvine. July. Aug. Sept. Oct. Nov. Dec. Jan. Feb. Mar 



1. 
2. 
3. 

4. 
5. 

6. 
7. 
8. 
9. 
10. 

11. 
12. 
13. 
14. 
15. 

16. 
17. 
18. 
19. 
20. 

21. 

22. 
23. 
24. 
25. 

26. 
27. 
28. 
29- 
30. 
31. 



34.23 

18.65 
54.24 
57.50 
25.03 

14.76 
119. 37 
35.19 
41.60 
28.50 

16.86 
19.93 
24.98 
9.39 
12.18 

6.64 
13.27 
3.82 
2.04 
1.44 

3.38 
5.06 
6.94 
27.08 
13.86 

31.01 
13.25 
7.23 
5.95 
12.66 



5.23 
15.10 

7.62 
10.81 
19.96 

26.53 

5.36 

21.26 

11.77 

5.06 

2.19 
.97 
.99 
.92 
.53 

.53 
2.39 
1.26 
6.05 
6.11 

18.91 
3.89 
1.54 
1.14 
5.86 

1.65 
14.35 
10.02 
3.93 
4.70 
1.84 



0.83 
.57 
.28 
.11 
.09 

.03 

.03 

1.45 

16.20 

11.32 

20.22 
6.36 

10.68 
4.78 
3.38 

22.26 

13.94 

6.58 

23.12 

8.87 

13.22 
4.09 
2.97 

22.09 
4.30 

1.77 
5.35 
1.63 
1.17 

7.44 



2.96 
4.03 
5.20 
3.72 
5.37 

3.77 
28.23 

4.36 
11.68 

3.05 

4.57 
3.71 
1.60 
9.04 
2.02 

.73 
1.42 
.92 
.55 
.37 

.24 
.64 

4.52 
32.66 

3.51 

2.79 
3.33 
1.46 

.78 
.44 
.26 



0.18 
.19 
.23 
.17 
.15 

.14 
1.29 

.87 
22.99 
20.62 

10.50 
18.50 
19.83 
16.82 
27.82 

5.10 
3.04 

2.42 
7.69 
2.64 

1.54 
.75 
.28 
.15 
.07 

.03 

.14 

4.90 

3.96 

1.27 

.70 



0.76 

33.71 

84.81 

170. 34 

9.33 

3.80 
23. 61 
5.24 
2.34 
1.12 

.77 
.62 
.49 
.52 
.54 

5.90 
2.50 



5.42 
1.50 
.59 
.33 
.05 

.05 
.05 
.03 
.03 
13.30 



7.24 
2.25 
4.99 
3.31 
.93 

.31 

.17 
.11 
.10 



.40 

.22 

.16 

7.20 

3.48 

1.48 
2.86 
1.25 
7.58 
1.55 

3.75 

1.34 

25.67 

33.89 

6.37 

3.99 
62.69 
19.43 
23.46 

6.39 
10.56 



9.95 
2.73 
1.87 
1.11 
1.77 

1.68 

1.24 

1.10 

21.51 

105. 51 

26.86 

11.95 

49.26 

7.94 

3.03 

41.31 
93.77 
70.51 
39.60 
12.19 

13.50 
9.02 

12.20 
5.83 
3.06 

1.72 
1.52 
1.32 

7.67 
2.57 



25.78 
7.41 
2.90 
2.00 
1.55 

1.26 
3.05 

10.84 
4.34 

22.16 

3.29 
1.93 
1.53 
1.50 
1.28 



.74 

.92 

1.09 

6.52 

2.28 
12.86 
46.28 
21.87 

5.67 

10.78 
5.08 
2.89 
6.09 
6.14 
6.30 



2.47 
1.86 
1.50 
2.76 
1.56 

1.04 
.82 
1.06 
2.06 
9.28 

3.54 

2.05 

10.41 

27.97 

20.71 

5.10 
2.36 
1.54 



0.50 
.63 
.46 
.31 
.30 

1.22 
5.09 
2.33 
1.07 



.42 
.28 
.16 
.51 
2.22 

1.06 

5.86 

7.45 

24.81 

7.87 

5.86 
6.38 
3.51 
1.27 
3.99 

11.18 
4.60 
2.01 



0.89 
.71 
.57 
.43 
.33 

.29 

.24 
.19 
.18 
.17 

.17 
.17 
.17 
.14 
.14 

.13 

2.82 
2.62 
8.20 
3.54 

8.42 
26.49 
7.11 
3.81 
1.23 

1.07 
1.46 
37.46 
20.86 
7.00 
18.24 



Combined monthly discharge of weirs Nos. 1 to 22, Kehena ditch, at Honokane Mauka, 
North Kohala, Hawaii, Apr. 1, 1912, to Mar. 31, 1913. 



Month. 


Discharge in mHllon gallons per 
day. 


Run-off 
(total in 




Maximum. 


Minimum. 


Mean. 


acre-feet). 


April 


119.37 
26.53 
23.12 
32.66 
27.82 

170. 34 
62.89 

105. 51 
46.28 
27.97 
24.81 
37.46 


1.44 
.53 
.03 
.24 
.03 
.03 
.10 

1.10 
.74 
.12 
.16 
.13 


22.2 
7.05 
7.17 
4.77 
5.65 

12.3 
7.88 

18.8 
7.33 
3.32 
3.65 
5.01 


2,040 
671 


May 


June 


660 


July 


454 


August 


538 


September •. 


1,130 


October 


750 


November 


1,730 


December 


697 


January 


316 


February 


314 


March 


477 






The year 


170. 34 


.03 


8.74 


9,780 







174 



WATER EESOUECES OP HAWAII, 1913. 



MISCELI ANEOUS MEASUREMENTS. 



Measurements of streams on the island of Hawaii at points other 
than regular gaging stations are listed below: 

Miscellaneous discharge measureTnents on Hawaii for 1913. 



Date. 



Stream. 



Locality. 



Gage 
height. 



Dis- 
charge. 



Apr. 14 
May 28 
June 3 
July 10 
Apr. 14 
May 28 
June 3 
July 10 
June 21 
24 
July 12 
Mar. 20 
June 28 
July 9 
June 27 
July 9 
June 28 
May 8 
July 8 
May 10 
July 8 
May 10 
July 9 
11 
11 
11 
12 
Jan. 8 
Mar. 20 
June 27 
July 9 
Jan. 26 



PukUiae 

do 

do 

do 

Pohakunanaka 

do 

do 

do 

Upper Springs Hilo Water Supply. 

Small Springs 

do 

Hanawai 

do 

do 

Aleamai 

do 

Large spring 

Maili 

do 

Waipahoehoe 

do 

Kapue 

do 

Makoewai 

Honomu 

Kapahehe 

Waste from large spring 

Kawainui 

do 

do 

do 

Waipio 

do 



Near Hilo 

do 

do 

do 

do 

do 

do 

do 

Piihonua, near Hilo. 

do 

do 

Near Papaikou 

do 

do 

do 

do 

Piihonua, near Hilo. 

Near Hilo 

do 

Near Papaikou 

do 

do 

do 

Near Honomu 

do 

do 

Piihonua, near Hilo. 

Near Pepeekeo 

do 

do 

do 

Below Waima 

Below Woiawa 



Feet. 
-4.61 
-4.76 
-4.50 
-4.62 
-3.35 
-3.42 
-3.27 
-3.33 



.62 
.36 
.45 
.51 



-3.25 



- .15 

- .44 
-3.10 
-2.40 
-4.24 

3.02 



- .69 

.36 

4.00 

.98 

(«) 
(a) 

.35 
.79 



Sec.-ft. 
27.5 
n.8 
29.0 
28.1 
5.60 
3.10 
7.85 
4.90 
2.09 
.74 
.75 
9.9 
17.3 
28.0 
16.6 
16.2 
2.54 
33.5 
10.5 
23.7 
62.6 
30.6 
52.8 
6.94 
10.8 
12.4 
.19 
491 
16 
27 
48 
55 
19 



a Staff gage washed out by flood. 

RAIN GAGING. 

The rainfall of the Hawaiian Islands is extremely variable, ranging 
from a few inches at several low-level, leeward localities to more tlian 
600 inches per annum, usually at elevations above 2,000 feet and on 
the windward sides of the islands. Valleys lying on the same sides 
of the islands and within a few miles of each other may have a varia- 
tion in mean annual precipitation of several hundred per cent. The 
rainfall may also vary greatly in the same valley for different eleva- 
tions. As a rule the zones of heaviest precipitation are on the 
windward sides of the islands, 2,000 to 3,000 feet above sea level. 

Generally the daily raia gages maintained by the United States 
Weather Bureau are located at low levels. Lack of funds and the 
absence of inhabitants at high-level localities have prevented the 
maintenance of Weather Bureau stations at high levels, although in 
a number of cases daily records are furnished that bureau by occu- 
pants and caretakers of mountain houses and ranches. The data 
furnished by the Weather Bureau are therefore generally of little 
value in their relation to stream run-off. 



KAIN GAGING. 175 

When high levels have been accessible and funds available high- 
level rain gages, which are read monthly and bimonthly, have been 
established by this ofl&ce and some valuable records obtained. To 
determine the precipitation of the Territory accurately would require 
the installation of thousands of gages and the construction of hun- 
dreds of miles of trails. 

Acknowledgment for cooperation in furnishing rainfall data is due 
the following: Kauai — Kekaha Sugar Co., Makee Sugar Co., Hawaiian 
Sugar Co., Grove Farm Plantation, W. F. Sanborn of Princeville 
Ranch, Kauai Electric Co., and J. McClellan — Oahu, C. C. Bitting, 
F. Meyer, and Hawaii Preserving Co.; Maui — Wailuku Sugar Co., 
Honolulu Ranch, Hawaiian Commercial & Sugar Co., Maui Board of 
Supervisors, Pioneer Mill Co., and Olowalu Sugar Co.; Hawaii — 
Hawaii Mill Co., P. W. P. Bluett, W. S. May, C. F. Clark, C. R. Wil- 
lard, Alex. Valentine, Honokaa Sugar Co., Pacific Sugar Mill, 
Hawaiian Irrigation Co., and Kukaiau Ranch Co. 

The tables on pages 180-185 show the precipitation at stations main- 
tained by the Geological Survey and precipitation data furnished from 
private sources which are not included in United States Weather 
Bureau records, to which those interested in further data are referred. 

Rainfall stations in Hawaii. 



1. Kokee, on mesa one-half mile above Knudsen's camp near head of Kokee Stream 

and about 19 miles north of Waimea; 3,550 feet above sea level. 

2. Puu Lua, near wagon road from Kekaha to Halemanu, about 12 miles north of 

Waimea; 3.500 feet above sea level. 

3. Lehuamakanoi, about 22 miles by road and trail north of Waimea; 3,932 feet- 

above sea level. 

4. Paukahana, about 21 miles north of Waimea by road and trail; 3,723 feet above 

sea level. 

5. Waiakoali, a,bout 22 miles by road via Halemanu north of Waimea; 3,450 feet 

above sea level. 

6. Kilohana, near Alakai swamp, about 23 miles by road and trail north-northeast 

of Waimea; 4,023 feet above sea level. 

7. Mohihi, on ridge at head of Mohihi Valley and about 23 miles by road and trail 

northeast of Waimea; 3,500 feet above sea level. 

8. Mohihi- Koaie divide, on ridge about 24 miles by road and trail north of Waimea; 

3,950 feet above sea level. 

9. Waialae, near Kaholuamanu; 14 miles by road and trail north of Waimea, near 

Waialae gaging station; 3,600 feet above sea level. 

10. Hukipo, 3 miles northwest of Waimea; 400 feet above sea level; records furnished 

by Kekaha Sugar Co. 

11. PaU trail, one-half mile mauka of Kekaha ditch where trail crosses and about 

2 miles mauka from Waimea; 850 feet above sea level; records fm-nished by 
Kekaha Sugar Co. 

12. Camp No. 7, about 2 miles northeast of Waimea; 150 feet above sea level; records 

furnished by Hawaiian Sugar Co. 

13. Waimea, in Mr. J. McClellan's yard; 10 feet above sea level; Mr. McClellan aids 

in obtaining record. 



176 WATER EESOURCES OP HAWAII, 1913. 

14. Kaholuamanu, about 12 miles by road and trail northeast of Waimea; 3,650 feet 

above sea level. 

15. Kabana, near Halekua camp, on ridge about .16 miles by road and trail via Kabo- 

luamanue from Waimea; 3,750 feet above sea level. 

16. Keanakua, near Halekua camp, on ridge about 16 miles by road and trail nortb- 

northeast of Waimea; 4,450 feet above sea level. 

17. Olokele mauka, on ridge on left side of Olokele Stream above intake of Olokele 

ditch, and about 18 miles by road and trail from Waimea; 2,100 feet above 
sea level; records furnished by Hawaiian Sugar Co. 

18. Waialeale, on summit of ridge at headwaters of Hanapepe, Wainiha, Hanalei, 

and Olokele streams, and North and South Forks of Wailua River; about 25 miles 
by road and trail northeast of Wa.unea; 5,075 feet above sea level. 

19. Camp No. 2, about 2 miles northwest of Hanapepe and 7 miles southeast of Waimea; 

250 feet above sea level; records furnished by Hawaiian Sugar Co. 

20. Hanapepe Valley, on left bank of Hanapepe ditch, 3 miles above Koula, and 

about 8 miles north of Eleele; 530 feet above sea level; records furnished by 
Hawaiian Sugar Co. 

21. Hiloa-Manawaiopuna divide, on ridge between east and west branches of Hana- 

pepe Stream, about 10 miles northeast of Eleele; 2,080 feet above sea level. 

22. Aakukui, near plantation camp, about 5 miles southwest of Lihue; 350 feet above 

sea level; records furnished by Grove farm. 

23. Waiahi, on South Wailua River, near Lihue Electric Co.'s power plant, 7 miles 

from Lihue; 600 feet above sea level. 

24. Hanahanapuni, on ridge near Kauai Electric Co.'s power line, about 10 miles 

northwest of Lihue; 911 feet above sea level. 

25. North Wailua, near Waialeale Pali, in North Kailua Valley, about 15 miles by 

road and trail northwest of Lihue; 1,250 feet above sea level. 

26. Pohakupili, on top of narrow ridge about 6 miles west of Kealia; 2,590 feet above 

sea level. 

27. Puu Eu, on ridge about 6^ miles west of Kealia; 2,748 feet above sea level. 

28. Kaneha, at gate tender's house near the mauka Kaneha reservoir, and about 5 

miles northwest of Kealia; 800 feet above sea level; records furnished by 
Makee Sugar Co. 

29. Summit Camp (Wainiha ridge), Hanalei; about 30 feet southwest of house at 

Summit Camp on power line; 6 miles from Kapaka; 1,900 feet above sea level; 
gage read by employee of Kauai Electric Co. 

30. Kapaka, at Lineman's camp, about 50 feet north of house, and 5 miles south of 

Hanalei; 635 feet above sea level; gage read by employee of Kauai Electric Co. 

31. About 40 feet north of Sanborn's residence, 2 miles from Hanalei; 105 feet above 

sea level; records furnished by Princeville ranch. 

32. About 50 feet below Kauai Electric Co.'s power house, at taibace, 7 miles west of 

Hanalei; 125 feet above sea level; records furnished by Kauai Electric Co. 

33. Intake of Wainiha Power Co.'s canal, 6 miles back of Hanalei; 700 feet above sea 

level; records furnished by Kauai Electric Co. 



1. Nuuanu Pali, on the water reservation, near the Pali road, about 200 yards toward 

Honolulu from top of the Pali; 1,200 feet above sea level. 

2. Summit of Konahuanui, southeast of Nuuanu Pali, about 6 miles in air line 

northeast of Honolulu; 3,100 feet above sea level. 

3. Near summit of Mount Olympus, back of Manoa Valley, about 6J miles in air line 

northeast of Honolulu ; 2,400 feet above sea level. 

4. Waiomao, on the property of C. C. Bitting, lot No. 8, Palolo Valley, Honolulu; 

600 feet above sea level; records furnished by C. C. Bitting. 



EAIN GAGING. 177 

Kaau crater, on trail from Mount Olympus, a short distance before it l(!ads down 

the ridge into Palolo Valley and about 3 J miles north of Kaimuki car line; 1,700 

feet above sea level. 
On the ridge between the Waiahole and Waiawa portals of the Waiahole Water 

Co.'s tunnel, near "Waiahole, Waikane, Oahu; 2,150 feet above sea level. 
Makaha, near Waianae, on property of Waianae plantation; 1,300 feet above sea 

level; records furnished by F. Meyer, manager Waianae plantation. 
About 150 yards downstream on left bank of North Fork of Kaukonahua stream 

from Waialua Agricultm'al Co.'s ditch intake, on trail 8 miles north of Wahiawa; 

1,200 feet above sea level. 
Near the office of the Hawaiian Preserving Co., Wahiawa; 940 feet above sea 

level; records are furnished by Hawaiian Preserving Co. 



1. In H. B. Penhallow'syard, Wailuku; 390 feet above sea level; records furnished 

by Wailuku Sugar Co. 

2. Yard at Wailuku Sugar Co.'s office, Wailuku; 175 feet above sea level; records 

furnished by Wailuku Sugar Co. 

3. Right bank of lao Stream at the gaging station, 20 feet from the north anchorage of 

the cable; 3 miles west of Wailuku; 830 feefc above sea level. 

4. lao Valley on small plateau or tableland between north and south branches of lao 

Stream, about 1 mile above the junction; about 4 miles west of Wailuku; 1,500 
feet above sea level. 

5. About 1,000 feet below small cave in lao Valley, on ridge between north and south 

branches of lao Stream; about 5^ miles west of Wailuku; 1,720 feet above sea 
level. 

6. Waiehu, at T. Burlem's house on old Spreckels ditch just south of South Waiehu 

Gulch, 2 miles northwest of Wailuku; 200 feet above sea level; records furnished 
by Hawaiian Commercial & Sugar Co. 

7. Waihee, on roof of building formerly used as plantation office; 3 J miles from 

Wailuku; 125 feet above sea level; records furnished by Wailuku Sugar Co. 

8. Waihee Gulch, on right bank of the stream, about 100 feet below lower develop- 

ment tunnel; about 5J miles from mouth of gulch and 3 miles above intake of 
Waihee canal and the Waihee gaging station; 1,500 feet above sea level. 

9. Rim of extinct crater of Mount Eke; 14 miles by trail from Honokahau; 4,500 

feet above sea level. 

10. Honokahau Gulch at ditchman's house on left bank of stream, 150 feet below 

ditch intake; about 8 miles from Honokahau; 800 feet above sea level; records 
fm'nished by Honolua Ranch Co. 

11. Camp on ridge between Honokahau and Kahakuloa gulches beside trail leading to 

top of Mount Eke; about 12 miles from Honokahavi; 2,300 feet above sea level. 

12. Honokahau ditch about one-half mile south of Honokahua Gulch and about 4 

miles from Honokahau; 760 feet above sea level; records furnished by Honolua 
Ranch Co. 

13. Honokawai Gulch at junction with Amalu Stream; on trestle supporting Hono- 

kawai flume about 1,000 feet below intake; about 3|- miles from Kaanapali and 
7^- miles from Lahaina; 1,500 feet above sea level; records furnished by Pioneer 
Mill Co. 

14. West slope of Puu Kukui, about one-half mile south of Honokawai Gulch; about 

4-| miles east of Kaanapali and 8^ miles from Lahaina; 2,500 feet above sea level; 
records furnished by Pioneer Mill Co. 

15. West slope of Puu Kukui at top of left bank of Honokawai Gulch; about 6 miles 

east of Kaanapali and 10 miles from Lahaina; 5,000 feet above sea level; records 
furnished by the Pioneer Mill Co. 
97764°— wsp 373—15 12 



178 WATER EESOUECES OF HAWAII, 1913. 

16. Olowalu Sugar Co.'s mill in Olowalu; 10 feet above sea level; records furnislied by 

Olowalu. Sugar Co. 

17. Olowalu Gulch (mauka) on right bank of Olowalu Stream about 3 J miles north of 

Olowalu; 600 feet above sea level; records furnished by Olowalu Sugar Co. 

18. Waikapu Gulch, on left bank of the South Branch of Waikapu Stream, about 4 

miles by trail from Waikapu and 6 miles from Wailuku; 1,535 feet above sea 
level. 

19. Olinda, on Kula pipe line; 4 miles east of Makawao; 4,000 feet above sea level; 

records furnished by Board of Supervisors, County of Maui. 

20. Waikamoi Gulch, on Kula pipe line at reservoir; 3 miles from Olinda and 7 miles 

from Makawao; 4,200 feet above sea level; records furnished by Board of Super- 
visors, County of Maui. 

21. Puohakamoa, on Kula pipe line about 1,000 feet below intake at Puohakamoa 

Gulch; 4 miles east of Olinda and 8 miles from Makawao; 4,300 feet above sea 
level; records furnished by Board of Supervisors, County of Maui. 

22. Camp No. 1 of Hawaiian Commercial & Sugar Co., near Spreckelsville, 5 miles 

east of Kahului; 50 feet above sea level; records furnished by Hawaiian Commer- 
cial & Sugar Co. 

23. Camp No. 7 of Hawaiian Commercial & Sugar Co., near Kihei, about 5 miles south 

of Puunene; 50 feet above sea level; records furnished by Hawaiian Commercial 
& Sugar Co. 

24. Puunene, at Hawaiian Commercial & Sugar Co.'s office; 50 feet above sea level; 

records furnished by Hawaiian Commercial & Sugar Co. 



1. Near flume at camp No. 8 of Waiakea plantation, near Waiakea; 1,500 feet above 

sea level; records furnished by Waiakea Plantation Co. 

2. Camp No. 6, at plantation camp back of Waiakea; 800 feet above sea level; records 

furnished by Waiakea plantation. 

3. United States Engineer's office at Hilo breakwater, Hilo; 15 feet above sea level; 

records furnished by United States Engineers' office. 

4. Piihonua, at office and store of Hawaii Mill Co., near Hilo; 915 feet above sea 

level; records fiurnished by Hawaii Mill Co. 

5. Hilo, in rear of J. T. Lewis's residence, Waianuenue Street; 60 feet above sea level. 

6. Station No. 1, about 50 feet in rear of Alex. Valentine's house at Wainaku camp 

of Hilo Sugar Co.; 200 feet above sea level; records June 30 to November 30 
furnished by Alex. Valentine, of Hilo Sugar Co. 

7. Station No. 2, at Antone Mogordo's blacksmith shop near Kaiwiki road, and about 

1 mile above the Wainaku camp of the Hilo Sugar Co. ; 1,000 feet above sea level. 

8. Station No. 3, near Kaiwiki, on trail from mauka end of Kaiwiki road to 2,700-foot 

camp, and about 600 feet above end of road; at lower edge of timber; 1,500 feet 
above sea level. 

9. Station No. 4, on trail from mauka end of Kaiwiki road to 2,700-foot camp, in 

timber belt; 2,000 feet above sea level. 

10. Station No. 5, about 3J miles above Kaiwiki,' near Hilo; 2,650 feet above sea level. 

11. Station No. 6, at camp, on east slope of Mauna Kea, in heavy timber belt; 3,000 

feet above sea level. 

12. Station No. 7, on east slope of Mauna Kea, in heavy timber belt; 3,500 feet above 

sea level. 

1 Gage originally located at elevation of 2,500 feet by H. R. Schulz; later moved to elevation of 2,650 feet; 
thought to be 2,500 feet by C. H, Pierce, July 1, 1911, 



WATER RESOURCES OF HAWAII, 1913. 179 

13. Station No. 8, on east slope of Mauna Kea, in heavy timber belt; 4,000 feet above 

sea level. 

14. Station No. 9, on eaet slope of Mauna Kea, in heavy timber belt; 4,500 feet above 

sea level. 

15. Station No. 10, on east slope of Mauna Kea, in heavy timber belt; 5,000 feet 

above sea level. 

16. Umikoa, on property of Kukaiau Ranch Co. (Ltd.), near ranch house; 3,400 feet 

above sea level; records furnished by Kukaiau Ranch Co. (Ltd.). 

17. Puukihe, on top of Kihe hill on the side of Mauna Kea, about 10 miles south oi 

Kukaiau; 7,822 feet above sea level; records furnished by Kukaiau Ranch Co. 
(Ltd.). 

18. Reservoir No. 13, on land of Honokaa Sugar Co., near Honokaa; 1,480 feet above 

sea level; records furnished by the civil engineers' office of Honokaa Sugar Co. 
and Pacific Sugar Mill. 

19. Near Honokaa, at office of civil engineers for Pacific Sugar MQl and Honokaa 

Sugar Co.; 1,120 feet above sea level; records furnished by civil engineers. 

20. Ahualoa homesteads, at ditch tender's house, near the Parker ranch, Honokaa; 

2,551 feet above sea level; records furnished by civil engineers' office of Honokaa 
Sugar Co. and Pacific Sugar Mill. 

21. Waima, in Waipio Valley along the line of lower Hamakua ditch, near Kukuihaele; 

980 feet above sea level; records furnished by Hawaiian Irrigation Co. 

22. Lower Koiawe, near the line of the lower Hamakua ditch in Waipio Valley near 

Kukuihaele; 1,000 feet above sea level; records fiu-nished by Hawaiian Irriga- 
tion Co. 

23. Upper Koiawe, along the line of the upper Hamakua ditch, Waipio Valley, near 

Kukuihaele; 3,350 feet above sea level; records furnished by Hawaiian Irriga- 
tion Co. 

24. Alakahi- Waipio, in Waipio Valley, Kohala Mountains, along the line of the lower 

Hamakua ditch, near Kukuihaele; 1,030 feet above sea level; records furnished 
by Hawaiian Sugar Co. 

25. Alakahi- Waipio, in Waipio Valley, Kohala Mountains, near the line of the upper 

Hamakua ditch; 3,870 feet above sea level; records furnished by Hawaiian 
Irrigation Co. 

26. Lower Kawabiui, in Waipio Valley, near the line of the lower Hamakua ditch, 

near Kukuihaele; 1,040 feet above sea level; records furnished by Hawaiian 
Irrigation Co. 

27. Upper Kawainui, in the Kohala Mountains, near the line of the upper Hamakua 

ditch, near Kukuihaele; 4,080 feet above sea level; records furnished by 
Hawaiian Irrigation Co. 

28. Honokane mauka; in the Kohala Mountains, near the intake of the Kehena 

ditch, near Kohala; 3,800 feet above sea level; records fiu'nished by Kohala 
Ditch Co. 

29. Kaaiihuhu, on property of W. S. May, about 3 miles northwest of Hawi; 1,400 feet 

above sea level; records furnished by W. S. May. 



180 



WATER RBSOUECES OF HAWAII, 1913. 



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^^ « ft 






s s 






03 



6J3, 



• C! 

■ 3 S 
■-< j3 ft 






•" « g c3 

c3-M , 



^■S 6 ^ 6: 

ja 5 o OS 5 C3-J2 jj a,-i ."So dO- 

rH C^' CO' ■>*'«»' CO t-^ 00 OS 



S o o «3 c3 03 n; 



^3 
a '^ 

as 

>s 

^ tj K^ 

^ s^ . 
C.2 3 M 

O -M (H © 

« g S o 



K o Q "^ "^ <^ o ooooo 

OJ o O O C4 00 ■^ 0«0 N CO 



93 



sa 



"2 -9 
So 






182 



WATER EESGUKCES OF HAWAII, 1913. 



1 1 




N 


NCO 


CO CON 


,-( 


CO CO CO CD 


eqcoco 


CO 


^ CO CD MN <N N 


IH 


tH 


1 


•rt-H 

M $ 


















'hS 


CO 


w 


_.. coco 1-t 


ggs 




OlO (MCO T-H T-t 


OS 




s 


COC 


■* C» CO >-l(N l> CO t^ 





«> OS « r>. in OS CO 


^ 




°s 


,_5 


r^03 


•^THi-Hiriodooir^c*: 


53^ 


t>^ 


NOT-HiOt^TjHC^rH 


r^ 




PhS? 


CO 


(Nl> 


rH CO CO <N CO ^ N CO 


CO 


(M CS rt CO <N 1-i (N 1-H 














CO 


rtrt u 1N(N 












.O -O JS "^ 












o 


o 


•COt^ ■ .00 


OcO 




t^ 




OS"*(NrH 


r^ 




0? 


(N 


o 






02 CO 




•H 


. irrcoio 


10 


<N 






OT-lt^O 


00 




ft 


■*' 


CO 






Tji-ai 




10 


■*oit> 


CO 








coaicOT-H 


(N 




















IM 














N 








t-»co 




"co 


OS 00 









"Os-^OStN^H 


r* 




1 


00 


CO 






030 




c5 


iOOi»0 





iO 




(NiOcOOCO 


IN 




CO 


CO 






c<ico 




CO 


OOrH 


W3 






(M »o^co 


IN 
















CVI 


i-l<N(N 


10 






.-H-*^ 




o 


^ 


CO 

o 






OCO 




10 


S80 


iO 


£2 




lOcocoSo 


^. 




o 


'^ 


^ 






'^ 




•0 


(NCDCD 


co' 










■a 


00 


00 










s~ 


COO 








NI^QOO 







U5 


■* 






05C0 




>0.-H<N 









COtHtHCO 




1 




c5 












CO 


rHCOCO 


t-^ 







NOS06 '0 








g 






§^ 




"c^I 


t^OO 




r^ 




COOSt-i 10 


CD 


1 
ft 


^ 

< 


o 








t^ 


UOCOIC 









■*C<» i-H 1C(N 


(N 


<N 


'-' 






■A-A 




t> 


CO CD CD 


s 


^ 




r-i-^COi-i 


-^ 


t 


(M 








00 r^ 




CO 


co»o 








(NCOOO 




■§ 


(N 


tH 






■*« 







rtOSO 









IOCOI> 




c5 












*o 


oi-*oi 


06 







' co' t>^ 





a. 


>-z 
























tH 




a 


a> 


03 






1-10 




"00 


(M QOCO 









oooost^r^ 


IM 




P) 


>o 


■* 






■*co 




Tt< 


00 .-10 





^ 




I^t~-HFHO 


(M 




3 


o 








»-itH 




OS 


COI>^t-^ 


f^ 






.-HCO-* 






1-5 




























^ 
a 


CO 


cs 






NrH 




s~ 


OS t^ 




""iO 




t^ 00 t^ CO OS 







CO 








10 IM 




&C0 10 





t- 




OSCOU0-*.-( 


CD 




ui 


CO 






CO "5 




oa 


i>o6os 


CD 


;:j 




i-iosOSiOiO 


"5 




o 


00 






O5 00 




"n 


I>.IM 








r~ioot> 


CS 




a 

-< 


tH 


CO 






CO-* 




t^ 


cooso 









-^CO GO 1-H 


OS 




e4 


c4 






e4e<i 




t-^ 


oit-^co 










cocot-^c4o 




























>o^ 






1^ 


I>- 






CO 




"0 


r~oo 




10 




SS5S8S 


CO 




^ 
S 










COl^ 




05 


ot>o 














iH 


■^ 






A-A 




CD 


•*cD(?i 


CO 






r-iodo6 






S3 








t^Th 




"00 


i> 00 




^ 




COCOOCOCO 


iO 






lO 






10 lO 




00 


1000 







Tf OCO .-ICO 






t>: 


"5 






«5<N 




(N 


Tiioocd 


<N 


«3 




NCOONIN 


c4 
















1-H 




(M 












CO 


r- 






10 (N 




03 


(NOO 









gsss 






1 


CD 


CO 






•*CD 






l>COO 





OS 




.H 




C> 












CO 


i-;i>-«i 


00 


' 




'uio 'o 






















CO 












1 


tA 

a 


c 


1 


c 

) "C 


c 


> 


0" 


> 


> 




s 




d 




> 


i 


^ 


d d d 


d 




rt 


C3 




t- 






o3 ■ fi c3 c 


03 . 




03 C, 08 ■ • • • 

fiSSfl ; : ; : 






ft 




;- 






ft lASfilS 


fi§ ; 




























r-i 
















C3 
















is-^;. 
















o 






Cs 








ci ;cv 




;<N 






In ; : 












f 


' do;; 


^"•f 


AloiS 


d 


:•§'§ 


".a ■ • 
. • ' 








o 


O p 






OOrH go p 




2-a 


00 doo 


d 






















■^ 


1^5 








Ad, 


2 2 '00 Z; 2 


'^' 






CO 














m 
















li-< 








Oi 


























CO ; 










CO 

p 

5 


CV 

c^ 

1 


c 

\ 

p 




Dec. 31, 1913 
Dec. 31, 19i; 

1,1913 

Dec. 31, 1913. 
31. 1913 


62: 


■coco 

■OS OS 




Jan. 1, 1907, to Dec. 31, 1913. 
Nov. 1, 1911, to Dee. 31, 1913. 
Nov. 3, 1910, to Dec. 31, 1913 
Sept. 26, 1910, to Nov. 21,, 191 
Oct. 12, 1910, to Dec. 31, 1913 
May 1, 1911, to Dec. 31, 1913. 

Jan. 1 to Dec. 31, 1913 

Jaa. 1, 1910, to Dec. 31, 1911; 


CO 
OS 

■0 . 




1 


1 

1 


c3 e 


c 


OV. 5, 1910, to 
tnuary, 1910, t 
in. 1 to Dec. 3 
ov. 4, 1910, to 
ar. 10 to Dec. 
Bbraary, 1907, 


Rosoj 


d 

T3 


33 CO 
-1 . 






"A 


s< 


' ;!5,;?^^gfe;s 


^00 












3 "O ; 








•^5 
i1 


illl 


fl 




.c 


f 
















g 


11 il 

■25 3^ 






h 
^1 


II 


hau. 
Honokahua G 
Honokawai G 
Puu Kukui, 

Lahaina. 
Puu Kukui, 

KaanapaU. 

Olnwaln 


|3 


•"soE 


d 

i<ft 

a 












,^ 


eic 


5 «aiio(dt^odoJOi- 


1 Neo-* 


ITS 


CO t> 00 OS rH « CO 


^' 1 
























1- 


1 !■ 






tH 






»■ 




.— 


CMSS 


CN 


CT 


W 


• 



EAIN GAGING. 



isa 



CO o »oc^ 



CO"3COCOCOCOCOCOC«COCON 



coei>NINIMe«IC<ltD 



W ro »OCS 



CO >o "^ t-J c4 CO cc (N ^ »c I ' 



O 03 "* t^ iM 



CD 00 00 IC 



r-H .-1 i-t IN 



•n oco 

•* Tfi-H 

o5 odoj 



^ Oi oco 



»0 CO -^ CO 05 



CO oi cq 



(M ,-1 1-1 iH 



CO CO 00 



.-1 •* 

00 .-1 



CO t^ O (33 00 (N 

r-t ,-1 (N .-I .-I Cq 



0-* 
cOi* 

iiicD 



lO lO lO 



CD COCi 



lo c<< oco 



lO CO 1-1 CO CO 00 (M 
O 00 00 03 Oi CO CD 

•O (N c4 C<i CO CO 03 



00 "O CJli-H 
CO t^ (N"3 

iri CO cdc<i 



CO CD 00 CO CO 



T-t oa 00 



»0 CO OO 



OOOCMOOO O 

i>; iri o o .-H -^ 



iH i-H M 



•* IQ 00 



C35 a>o 

C3 0-* 



3rH rTTjiOOO-^C^ 

ilO r-H 0000 OCO^ OO 
1-1 1-1 1-ICOIMIM.. 



(N (M CO tH 



cq^'^coc^icococ^ 

ICCO 00 »0 (^ 03 



OOIM 

1-H CDco" 



N N CO 



lO ■* 05 O lO 0>0 

CO lo CD cq -* coco 

T-l T-i r-t 1-1 IN 1-1 



Ol CO cq 



-* CO "3 CO 



CO -*i.-^ 

■* Oco 



1QOOOOO(N(N •* 

(NCqc003»Or--ioif50"3lOCO 



O "3 00 
i-l OS CD 



,-1^ ,-l,^i__ICMCCI 



lO lO CO 



lO CO CO CO »0 -^il 

OCDOOOO<NCOCq(N<NNco 
05CiO-^I>^C0 iH 



iH 00 03 



00 iOCO 

00 coco 

< N 1-1 

CO IOCS 



00 <3l COtH 

•* CO i-lt~ 

CD tA 00-* 

■* 1-c "OO 

05 i^J^ coco 

CO O lOCN 



(N(N00COCO(N C<1 

CDCD40<0;DCDOO»0*OOCO 

~"o *^ O CDC^ O 00 

c^ooooococococq<Ncoo 

(N CN Oicq CO >0 ' CO 
CO CO i-< CO CO CO 



^o'ddodgoooo" 



IP S : : : : :« 



fi 1^ p 






ofcrH 



;c5 



o 



O OS 



fi ft 



5JOcocoJ2m 

0> "^ 1-1 -^ '"' — I 



H . 3 Z '^ t-s 1-5 ^ ^i; 
i-T o> .^i-T^^T-i ^ 



'"'o I-T 



« I-T CO J2 P 



3S 



en ^' 



P M P ^- m ^ 



O 03 



^ V ^ 7-1 



1-1 03 

03-2 -^0^2 03 
S '-' ■ 

<N « Oi 

^aP- 

1-51-3 < 



!S2 
li-ToT 



3 3 ;:;■ 03 . C53 . ii; 



S-5- 05 ^ 



5^ -' p 



p fi 



o i2 c-q S 
a> " »-< " 



s p «^ 



O i-H 



iCO"^ ow Occ^ 






(D « ffl >"• 



tc OS 

2 -MOO 



il^sSiz; 



1-^ ' ^\ 03 03 ca 3 



S "* 
"3 'S 






BSSg 

c3^ C3^ 



•°gs 



.2^ J 



i-iiNconH'iocDi^odoiSggci) ^ ft^g S a '^ 
onnooooriori S^ "^ <" » O i-< o * 



1-H ® 

fto? 



■-fa I 



ws 



I o o 

] a a 
; o o 



o o o o 

c c c c 



"en » Oi-< o^ 



a a .2 » 

•2. 42- ft^ 

.S "-1 .2 '"' S 



o ^ 

■q.3 



2.2.2.2 

03 03 c3 03 



■■S'-S'5'5'S-5 3 



3 «c5o6 > « ^3 



mmui 



W Bh pel 






_g OO ^g o6 ^ w, 

03 . 03 ., C3 CO 






p p <^ 



CO** »0 CD ^- 00 03 O i-( C^ CO ■* IC CO 






P P MM 

CD t-^ 00 ai 

C^ CN W C^» 



184 WATER RESOURCES OF HAWAII, 1913. 

Maximum precipitation, in inches, at rainfall stations maintained during 1913. 









Kauai. 






- 


Month. 


13. Waimea. 


20. Hanapepe Val- 
ley near Koula, 


29. Summit camp, 
Hanalei. 


30. Kapaka. 




Rainfall. 


Maxi- 
mum in 
24 hours. 


Rainfall. 


Maxi- 
mum in 
24 hours. 


Rainfall. 


Maxi- 
mum in 
24 hours. 


RatofaU. 


Maxi- 
mum in 
24 hours. 




1.20 
1.96 


.21 
4.51 
2.95 
1.23 

.37 

.78 
6.10 
2.18 

.09 


0.70 

.73 



.19 

2.32 

2.75 

.81 

.11 

.15 

3.81 

1.73 

.06 


9.08 
3.54 
5.05 

11.26 
9.42 

10.92 
7.73 

10.44 
3.66 

14.18 

25.61 
.69 


1.74 

.65 

.66 

2.19 

2.98 

4.50 

1.28 

1.96 

.72 

2.63 

4.97 

.29 


17.92 

8.93 

15.49 

17.04 

21.47 

14.47 

12.27 

11.91 

8.95 

13.80 

31.16 

7.81 


2.21 
2.65 
2.46 
2.24 
7.00 
4.62 
1.62 
1.09 
1.69 
1.39 
3.82 
2.55 


9.82 
7.84 

11.57 
7.43 

10.46 
8.53 
9.03 
7.67 
5.08 
6.93 

19.10 
9.49 


1.42 




2.00 




1 83 




1.36 




2.30 




1.78 


July 


1.22 




.86 




.68 


October 


1.58 




2.87 




3.62 






For 1913 

Estimated evapora- 


21.58 
2.00 


3.81 


111. 58 
2.00 


4.97 


181. 22 
2.00 


7.00 


112.95 
2.00 


3.62 














23.58 




113.58 




183.22 




114.95 

















Kauai. 


Oahu. 


Month. 


32. Powerhouse 
near Wainiha. 


33. Intake of 
Wainiha canal. 


7. Makahanear 
Waianae. 


9. Hawaiian Pre- 
serving Co. 




8.39 
10.50 
12.41 
10.51 
5.22 
5.44 
6.92 
7.21 
3.16 
5.22 
17.34 
8.65 


2.76 

2.85 

2.75 

1.61 

1.43 

.99 

1.97 

.81 

.81 

1.77 

1.89 

4.39 


6.91 
6.01 
27.99 
13.68 
7.25 
10.22 
11.83 
9.54 
5.20 
9.18 
28.03 
8.81 


1.69 
1.05 
9.40 
2.61 
1.55 
1.65 
2.60 
1.16 
1.47 
3.35 
4.90 
3.18 


5.95 
3.43 
6.26 
3.94 

13.62 
6.69 
1.39 
4.02 
4.22 
8.80 
7.78 

12.41 


1.64 
1.30 
4.00 
1.90 
6.40 
3.00 
.64 
2.60 
2.60 
4.70 
2.21 
9.14 






February 








2.32 
4.00 
5.32 


2.36 
3.57 
3.61 
4.76 
5.78 
.82 


0.59 




.51 


May 


1.76 






July 


1.00 


August 


.85 




.37 


October 


1.30 


November. 


1.27 




.32 






For 1913 

Estimated evapora- 
tion 


100.96 
2.00 


4.39 


144.65 
2.00 


9.40 


78.41 
2.00 


9.14 


32.44 
2.00 


1.76 














102. 96 




146. 65 




80.41 




34.44 















Month. 



Hawaii. 



4. Piihonua. 



18. Reservoir 
No. 13. 



19. Near Honokaa. 



20. Ahualoa home- 
steads. 



January. . . 
February . 

March 

April , 



June 

July 

August 

September. 

October 

November. 
December. . 



11.61 
18.08 
10.77 
15.19 
12.50 
12.95 
6.16 
6.54 
43.14 
9.16 



For 1913 

Estimated evapora- 
tion 



146.1 
2.0 



1.96 
1.95 
3.20 
6.00 
1.76 
2.40 
1.10 
1.71 
6.00 
2.07 



3.48 

9.31 

3.15 

3.19 

3.98 

2.40 

1.82 

4.46 

5.05 

.63 

16.83 

17.42 



.00 



71.62 
2.00 

73.62 



1.27 

3.00 

1.16 

1.16 

1.12 

1.25 

.45 

.85 

1.85 

.12 

3.62 

6.00 



2.96 

6.54 

2.80 

7.95 

4.62 

2.32 

1.77 

4.36 

2.86 

.50 

17.63 

21.67 



6.00 



75.98 
2.00 
77.98 



0.80 
2.00 

.82 
1.73 
1.80 
1.68 

.93 
1.08 

.70 

.25 
3.35 
9.20 



2.03 
3.72 
1.98 
6.68 
6.20 
3.02 
2.42 
4.28 
2.81 
.59 
25.78 
16.95 



9.20 



75.46 
2.00 

77.46 



0.54 

.72 

.72 

1.47 

1.75 

.77 

1.05 

.66 

.80 

.14 

7.06 

6.37 



7.06 



EAIIT GAGING. 185 

Maximum 'precipitation, in inches, at rainfall stations maintained during 1913— Contd. 





Hawaii. 


Month. 


21. Waima. 


22. Lower Koiawe. 


23. Upper Koiawe. 


24. Alakahi-Waipio, 
lower. 


January 






4.45 
4.44 
4.67 
6.77 
6.58 
7.41 
4.37 
4.86 
3.96 
1.49 
18.13 
14.04 


1.14 

1.22 

.75 

1.36 

.95 

1.55 

1.10 

.90 

.96 

.40 

4.20 

4.30 






5.39 
7.61 
9.49 
12.35 
12.98 
15.45 
8.45 
9.58 
9.62 
2.97 
33.83 
25.29 


1 57 












1.58 


March 










1 83 




5.92 

5.09 

6.33 

3.62 

4.06 

2.96 

.67 

19.82 

11.23 


1.20 

.95 

1.50 

1.00 

1.30 

.88 

.25 

5.20 

6.20 


7.60 
10.10 
13.50 
5.08 
9.00 
3.38 
2.63 
22.76 
8.93 


1.00 

2.00 

2.10 

.60 

1.70 

.57 

.65 

4.55 

2.35 


3.10 


May. . . 


1 75 


June 


2.89 


July 


1.75 




1 74 


September 


3.52 


October 


.49 




6 92 


December 


9 25 






For 1913 

Estimated evapora- 
tion 


59.70 
2.00 


6.20 


81.17 
2.00 


4.30 


82.98 
2.00 


4.55 


153.0 
6.0 


9.25 














61.7 




83.17 




85.0 




159.0 















Month. 



Hawaii. 



25. Alakahi-Wai- 
pio, upper. 



26. Lower Kawai- 
nui. 



27. Upper Kawai- 
nui. 



29. Kaauhuhu. 



January 

February 

March 

April 

May 

June 

July 

August 

September 

October 

November 

December 

For 1913 

Estimated evapora 
tion 



4.87 

9.15 

9.55 

19.72 

10.42 

16.97 

13.30 

1L72 

7.28 

4.27 

41.30 

.14.85 



163.4 
6.0 



169.4 



1.60 
1.65 
2.10 
3.65 
2.01 
2.60 
2.21 
2.30 
1.40 
.60 
8.50 
4.55 



8.50 



131. 87 
2.00 



133.9 



0.97 
1.22 
1.40 
1.60 
1.15 
2.20 
1.20 
1.80 
1.50 
.45 
8.00 
11.03 



10.41 
11.39 
15.73 
28.82 
14.64 
24.54 
20.92 
18.46 
13.75 
6.17 
56.62 
18.86 



11.03 



240.3 
6.0 



246.3 



3.90 
L75 
3.63 
4.50 
2.10 
3.05 
3.63 
3.32 
3.15 
.73 
13.32 
5.87 



2.60 
4.71 
2.29 
6.39 
3.72 
6.56 
4.00 
3.34 
2.51 
2.01 
11.53 
10.10 



13.32 



59.76 
2.00 



1.17 
.66 
.45 

L32 
.89 

1.26 

1.90 
.98 

L02 
,45 

2.02 

L94 



2.02 



Precipitation at rainfall stations maintained on Hawaii during 1911 and 1912. 



Month. 


16. Kukaiau ranch. 


17. Puukihe. 


1911 


1912 


1912 




Inches. 
12.49 
43.44 
3.30 
11.74 
9.49 
3.24 
2.53 
3.69 
3.77 
3.39 
4.72 
5.71 


Inches. 



22.04 

10.61 

13.15 

1.93 

.11 

.67 

1.42 

1.47 

4.55 

6.53 

1.51 


Inches. 


















June 




July 








September 












December 








Year 


a 107. 5 


O64.0 


6 38.7 







o Two inches should be added for estimated evaporation. 
6 Includes 6 inches estimated evaporation. 



INDEX. 



A. Page. 

Acre-foot, definition of. 15 

Akulikuli Spring near Kealia, Kauai 60-61 

AIo Stream near Huelo, Maui 137 

Anahola ditch at Kiokala, near Kealia, Kauai 64-65 
Anahola River above dam at Kiokala, near 

Kealia, Kauai 63-64 

Appropriation, character and purpose of 7-8 

Austin, H. A. R., work of 22 

Authority for work 7-8 

B. 

Bailey, C. T., work of 22 

Bitting, C. C, cooperation of 175 

Bluett, P. W. P. , cooperation of 175 

Bridge station, definition of 14 

C. 

Cable station, definition of 14 

Christiansen, E. O., work of 22 

Clark, C. F., cooperation of 175 

Computations, accuracy of 21 

methods of obtaining 17-20 

Conservation fund, levying of 7-8 

Cooperation, terms of 8-9 

Cross-section, determination of 11 

Current-meter, description of 11 

D. 

Definition of terms 15-16 

Discharge, methods of computing 17-20 

Discharge measurements, accuracy of 20-21 

tables of, explanation of 21 

Division of work 22 

Dort, J. C, work of 22 

Dort, S. W., work of 22 

E. 
East Branch or Fork. See name of main 
stream. 

East Maui, list of stations on 25-26 

Eleele, Kauai, Hanapepe River near 37-38 

Hanapepe ditch near 40-41 

Hiloa ditch near 38-40 

Equivalents, convenient 15 

G. 

Gages, method of installation 14 

Gaging stations, classes of 10 

kinds used 13-14 

list of 22-27 

records of 27-151 

Gallons per minute, definition of 15 

Goo, E. E., work of 22 

Goo, R. M. S., work of 22 

Grove Farm Plantation, cooperation of 175 



H. Page. 

Halpuaena Stream near Huelo, Maui (old and 

new stations) 134-135 

Halekua Stream near Waimea, Kauai 32-33 

Hamakua ditch at main weir, Puualala, near 

Waimea, Hawaii 168 

Hamakua group, Hawaii, stream-flow meas- 
urements on 168-170 

Hanalei, Kauai, Kuna ditch near 68-69 

Hanalei River near Hanalei, Kauai 67-68 

Hanamaulu ditch near Lihue, Kauai 48-49 

Hanamaulu River at Kapaia near Lthue 45-46 

Hanapepe ditch near Eleele, Kauai 40-41 

near Hanapepe, Kauai 41-42 

Hanapepe River at Koula, near Eleele, Kauai 37-38 

Hardy, W. v., work of 22 

Hawaii, conditions in various districts of. 152-153 

list of stations on 26-27 

miscellaneous measurements on 174 

rainfall stations on 178-179 

stream-flow records on 153-174 

table showing precipitation on 183 

Hawaii Mill Co. , cooperation of 175 

Hawaii Preserving Co., cooperation of 175 

Hawaiian Commercial & Sugar Co., coopera- 
tion of. 175 

Hawaiian Irrigation Co. , cooperation of 175 

Hawaiian Sugar Co., cooperation of. . ^ 175 

Hilo, Hawaii, Honolii River at Kaiwiki, near. 167 

stations at 2,700-foot level, near 153-165 

Wailuku River near 166-167 

HUoa ditch near Eleele, Kauai 38-40 

Honokaa Sugar Co., cooperation of 175 

Honokahau, Maui, Honolua Stream near . . 117-118 

Kahakuloa Stream near 113-114 

Honokahau ditch at intake, near Honokahau, 

Maui 116 

Honokahau Stream near Honokahau, 

Maul 115-116 

Honokawal ditch near Lahaina, Maui 119-120 

Honokawai Stream near Lahaina, Maui 118 

Honolii River at Kaiwiki, near Hilo, Hawaii. 167 
Honolua Stream near Honokahau, Maui. . . 117-118 
Honolulu, Oahu, East Branch of Manoa 
Stream at upper Manoa Valley, 

near 82-83 

Kahuawai Spring near 79 

Kalihi Stream at Kioi Pool, near 74 

Lulumaha ditch at upper Nuuanu reser- 
voir, near 76-77 

Manoa Stream near 80-82 

Nuuanu Stream at Luakaha weirin upper 

Nuuanu Valley, near 75 

below reservoir No. 2 wasteway, 
near 75-76 

187 



188 



INDEX. 



Honolulu, Oahu, Pauoa Stream at upper 

Pauoa Valley, near 78-79 

Waiomao Stream at upper Palolo Valley, 

near 85-86 

West Branch of Manoa Stream at upper 

Manoa Valley, near 84^85 

Honolulu Ranch, cooperation of 175 

Honopou Stream near Huelo, Maul 149-151 

HoolawaliiUi Stream near Huelo, Maui 148-149 

Hoolawanui Stream near Huelo, Maul 147-148 

Huelo, Maui, Alo Stream near 137 

Haipuaena Stream near (old and n^w 

stations) 134-135 

Honopou Stream near 149-151 

HoolawaliiUi Stream near 148-149 

Hoolawanui Stream near 147-148 

Kailua Stream near 145-146 

Nailiilihaele Stream near 144-145 

Oanul Stream near 146-147 

Oopuola Stream near 139-140 

Puohakamoa Stream near (old and new 

stations) 135-137 

Spreckels ditch near 141-144 

Waikamoi Stream near 138-139 

Huleia River near Lihue, Kauai 43-44 

I. 

lao Stream near Wailuku, Maui 104-105 

Integration method, use of 12-13 

Investigations, authority tor 7-8 

scope of 3 

K. 

Kaehulua Stream at Kuhinoa weir, near 

Kealia, Kauai 57-58 

Kaehulua Stream, North Fork, at Kainahola 

weir, near Kealia, Kauai 58-59 

Kaehulua Stream, South Fork, at Waina- 

muamu weir, near Kealia, Kauai. 56-57 
Kahakuloa Stream near Honokahua, Maui. .113-114 

at Kahakuloa, near Waihee, Maui 113 

KahanaJki Stream, North Branch, in Kailua 

Valley, near Kailua, Oahu 96-97 

Kahanaiki Stream, South Branch, in Kailua 

Valley, near Kailua, Oahu 96 

Kaheaku, John, work of 22 

Kahoma ditchat weir, near Lahaina,Maui. 121-122 
Kahuawai Spring at upper Pauoa Valley, 

near Honolulu, Oahu 79 

Kailua, Oahu, Kaimi Stream in Kailua Val- 
ley , near 91-92 

Kamakalepo Stream in Kailua Valley, 

near 93-94 

Makawao Stream in Kailua Valley, near. 89-90 
North Branch of Kahanaiki Stream in 

Kailua Valley, near 96-97 

Pohakea Stream in Kailua Valley, near. 94-95 
South Branch of Kahanaiki Stream in 

Kailua Valley, near 96 

Kailua Stream near Huelo, Maui 145-146 

Kaimi Stream in Kailua Valley, near Kailua, 

Oahu 91-92 

Kainahola weir near Kealia, Kauai, North 

Fork of Kaehulua Stream at 58-59 



Kaiwiki near Hilo, Hawaii, Honolii River 

at 167 

Kalihi Stream at Kioi Pool, near Honolulu, 

Oahu 74 

Kalihiwai River near Kilauea, Kauai 65-66 

Kamakalepo Stream in Kailua Valley, near 

Kailua, Oahu 93-94 

Kanaha ditch near Lihue, Kauai 51-53 

Kaneha ditch near Kealia, Kauai 62-63 

Kapaa River near Kealia, Kauai 59-60 

Kapahi ditch at Kapahi, near Kealia, Kauai. 61-62 . 
Kapaia near Lihue, Kauai, Hanamaulu 

River at 45-46 

Kauai, list of stations on 22-23 

miscellaneous measurements on 73 

rainfall stations on 175-176 

stream-flow records on 27-73 

table showing precipitation on 180-181 

Kauai Electric Co. , cooperation of 175 

Kauaula ditch near Lahaina, Maui 126-127 

Kaukonahua Stream, Left Branch of North 

Fork, near Wahiawa, Oahu.... 100-101 
Right Branch of North Fork, near Wah- 
iawa, Oahu 99-100 

South Fork, near Wahiawa, Oahu 102 

Kawaikoi Stream near Waimea, Kauai 28-29 

Kealia, Kauai, Akulikuli Spring near 60-61 

Anahola ditch at Kiokala, near 64-65 

Anahola River above dam at Kiokala, 

near .-.:.. 63-64 

Kaehulua Stream at Kuhinoa weir, near. 57-58 

Kaneha ditch near 62-63 

Kapaa River near 59-60 

Kapahi ditch at Kapahi, near 61-62 

Konohiki Stream at Makakualele weir 

(mauka), near 55-56 

North Fork of Keahulua Stream at Kai- 
nahola weir, near 58-59 

South Fork of Kaehulua Stream at Wai- 

namuamu weir, neat 56-57 

Kehena ditch at Honokane Mauka, near 

North Kohala, Hawaii 173 

Kekaha Sugar Co., cooperation of 175 

Kennedy, H. M., work of 22 

KUauea, Kauai, Kalihiwai River near 65-66 

Kimble, Howard, work of 22 

Kioi Pool near Honolulu, Oahu, K!alihi 

Stream at 74 

Kiokala, near Kealia, Kauai, Anahola ditch 

at 64-65 

Anahola River above dam at 63-64 

Kohala ditch near Kohala, Hawaii 170-172 

Kohala group, Hawaii, stream-flow records 

for 170-172 

Konohiki Stream at Makakualele weir 

(mauka), near Kealia, Kauai 55-56 

Koula, Kauai, Hanapepe ditch at 40-41 

Hanapepe River at 37-38 

Kuhinoa weir near Kealia, Kauai, Kaehulua 

Stream at 57-58 

Kukaiau Ranch Co. , cooperation of 175 

Kukuihaele, Hawaii, New Hamakua ditch 

at main weir near 169-170 

Kuna ditch near Hanalei, Kauai 68-69 



INDEX. 



189 



L. Page. 

Lahaina, Maui, Honokawai ditch near 119-120 

Honokawai Stream near 118 

Kah-oma ditch, at weir, near 121-122 

Kauaula ditch near 126-127 

Lahainaluna ditch near 124-125 

Lahaiaaluna Stream near 122-124 

Launiupoko Stream near 127 

Lahaiaaluna ditch near Lahaina, Maui 124-125 

Lahainaluna Stream near Lahaina, Maui. . 122-124 

Launiupoko Stream near Lahaina, Maui 127 

Lihue, Kauai, East Branch of North Fork of 

Wailua River near 53-55 

Hanamaulu ditch near 48-49 

Hanamaulu River at Kapaia, near 45-46 

Huleia River near 43-44 

Kanaha ditch near 51-53 

North Fork of Wailua River near 50-51 

South Fork of Wailua River above 

Waiehu Falls near 46-47 

Lihue ditch near Lihue, Kauai 49-60 

Luakaha weir ia upper Nuuanu Valley, near 
IIonolulu,Oahu, Nuuanu Stream 

at 75 

Lulumaha ditch at upper Nuuanu reservoir, 

near Honolulu, Oahu 76-77 

M. 

Makakualele weir (mauka) near Kealia, 

Kauai, Konohiki Stream at 55-56 

Makawao ditch at Makawao flume, near 

Waimanalo, Oahu 88 

Makawao Stream in Kailua Valley, near 

Kailua, Oahu 89-90 

Makaweli, Kauai, Olokele ditch at Tunnel 

No. 12, near 33-34 

Olokele ditch at weir, near 35-36 

Makaweli River near Waimea, Kauai 31-32 

Makee Sugar Co . , cooperation of 175 

Maniania ditch near Wailuku, Maui 105 

Manianiaula, near Waikane, Oahu, Waiahole 

Stream at 97-98 

Manoa Stream at College of Hawaii, near 

Honolulu, Oahu 80-82 

at upper Manoa Valley, near Honolulu, 

Oahu 80 

Manoa Stream, East Branch, at upper Manoa 

Valley, near Honolulu, Oahu 82-83 

Manoa Stream, West Branch, at upper Manoa 

Valley, near Honolulu, Oahu 84-85 

Man's water, definition of 16 

Maui, list of stations on 24-26 

miscellaneous measurements on 151-152 

rainfall stations on 177-178 

stream-flow records on 104-152 

table showing precipitation on 182 

Maui Board of Supervisiors, cooperation of. . 175 

May, W. S., cooperation of 175 

McClellan, J., cooperation of 175 

Measurements, stream-flow, methods of ob- 
taining 9-10 

Meyer, F., cooperation of 175 

Million gallons, definition of 15 

Miner's inch, definition of 15 

Miscellaneous measurements on Hawaii 174 

on Kauai 73 



Miscellaneous measurements on Maul 151-152 

on Oahu 103 

Multiple-point method, use of 12 

N. 

NaiUUihaele Stream near Huelo, Maui 144-145 

New Hamakua ditch at main weir near Ku- 

kuihaele, Hawaii 169-170 

North Branch or Fork. See name of main 

stream. 
North Kohala, Hawaii, Kehena ditch at 

Honokane Mauka, near 173 

North Waiehu Stream near Wailuku, Maui. 109-110 
Nuuanu reservoir, upper, near Honolulu, 

Oahu, Lulumaha ditch at 76-77 

Nuuanu Stream at Luakaha weir in upper 

Nuuanu Valley, near Honolulu, 

Oahu 75 

below reservoir No. 2 wasteway, near 

Honolulu, Oahu 75-76 

O. 

Oahu, list of stations on 23-24 

miscellaneous measurements on 103 

rainfall stations on 176-177 

stream-flow records on 74-103 

table showing precipitation on 181 

Oanui Stream near Huelo, Maui 146-147 

Olokele ditch at Tunnel No. 12, Makaweli, 

Kauai 33-34 

at weir near Makaweli, Kauai 35-36 

Olowalu ditch No. 1 near Olowalu, Maul. . 129-130 

Olowalu Stream near Olowalu, Maui 128-129 

Olowalu Sugar Co. , cooperation of 175 

Oopuola Stream near Huelo, Maui 139-140 

P. 

Pacific Sugar Mill, cooperation of 175 

Palolo ditch near Waikapu, Maui 132-133 

Palolo Valley, upper, near Honolulu, Oahu, 

Waiomao Stream at 85-86 

Pauoa Stream at upper Pauoa Valley, near 

Honolulu, Oahu 7&-79 

Pauoa Valley, upper, near Honolulu, Oahu, 

Kahuawai Spring at 79 

Pioneer Mill Co. , cooperation of 175 

Pohakea Stream in Kailua Valley, near Kai- 
lua, Oahu 94-95 

Poowaiomahaihai ditch near Waimea, Kauai. 36-37 

Princeville ranch (W. F. Sanborn), coopera- 
tion of 175 

Puohakamoa Stream near Huelo, Maui (old 

and new stations) 135-137 

Puualala, near Waimea, Hawaii, Hamakua 

ditch at main weir 168 

R. 

Rainfall stations, table showing maximum 

precipitation 184-185 

table showing precipitation and evapo- 
ration 180-183 

Rainfall stations in Hawaii, list of 175-179 

Rain gaging, explanation of 174-175 

Rating table, use of 17-18 

basis of 21 



190 



INDEX. 



Run-off, definition of 15 

method of obtaining 11-14 

S. 

Sanborn, W. F. , cooperation of 175 

Scope of work 9 

Second-foot, definition of 15 

Second-feet per square mile, definition of 15 

Single-point method, use of 12 

Soundings, method of obtaining 11 

South Branch or Fork. See name of main 

stream. 
South Side Waikapu ditch near Waikapu, 

Maui 131-132 

South Waiehu ditch near Wailuku, Maui . . 107-108 
South Waiehu Stream near Wailuku, Maui. 106-107 

Spreckels ditch near Huelo, Maui 141-144 

near Waihee, Maui 112 

Stream measurement, accuracy of 21 

field methods of 9-10 

methods of computing 17-20 

T. 

Tables, explanation of 20-21 

Terms, definition of 15-16 

V. 

Valentine, Alex. , cooperation of 175 

Velocity-area measurements, methods of mak- 
ing 11-14 

W. 

Wading station, definition of 14 

Wahiawa, Oahu, Left Branch of North Fork 

of Kaukonahua Stream, near.. 100-101 
Wahiawa, Oahu, Right Branch of North 

Fork of Kaukonahua Stream 

near 99-100 

Wahiawa, Oahu, South Fork of Kaukonahua 

Stream near 102 

Waiahole Stream at Manianiaula, near Wai- 

kane, Oahu 97-98 

Waialae River near Waimea, Kauai 29-30 

Waiehu Falls, near Lihue, Kauai, South Fork 

of Wailua River above 46-47 

Waiehu. ditch. South, near Wailuku, Maui. 107-108 
Waiehu Stream, North, near Wailuku, 

Maui 109-110 

Waiehu Stream, South, near Wailuku, 

Maui 106-107 

Waihee Stream near Waihee, Maui 110-111 



Waihee, Maui, Kahakuloa Stream at KaJia- 

kuloa, near 113 

Spreckels ditch near 112 

Waikamoi Stream near Huelo, Maui 138-139 

Waikane, Oaiiu, Waiahole Stream at Mani- 
aniaula, near 97-98 

Waikapu, Maui, Palolo ditch near 132-133 

South Side Waikapu ditch near 131-132 

Waikapu Stream near Waikapu, Maui . . 131 

Wailua River, East Branch of North Fork, 

near Lihue, Kauai 53-55 

Wailua River, North Fork, near Lihue, 

Kauai 60-51 

Wailua River, South Fork, above Waiehu ' 

Falls, near Lihue, Kauai 46-47 

Wailuku, Maui, lao Stream near 104-105 

Maniania ditch near 105 

North Waiehu Stream near 109-110 

South Waiehu ditch near 107-108 

South Waiehu Stream near 106-107 

Wailuku River near Hilo, Hawaii 166-167 

Wailuku Sugar Co. , cooperation of 175 

Waimanalo, Oahu, Makawao ditch at Maka- 

wao flume, near 88 

Waimanalo ditch below main reservoir on 
the Waimanalo plantation, near 

Waimanalo, Oahu 86-88 

Waimea, Hawaii, Hamakua ditch at main 

■weir, Puualala, near 168 

Waimea, Kauai, Halekua Stream near 32-33 

Kawaikoi Stream near 28-29 

Makaweli River near 31-32 

Poowaiomahaihai ditch near 36-37 

Waialae River near 29-30 

Waimea ditch near Waimea, Kauai 31 

Waimea River near Waimea, Kauai 27-28 

Walnamuamu weir near Kealia, Kauai, 
South Fork of Kaehulua Stream 

at 56-57 

Wainiha River (East and West channels) at 
power house, near Wainiha, 

Kauai 69-73 

Waiomao Stream at upper Palolo Valley, 

near Honolulu, Oahu 85-86 

Water-stage recorder, description of 14 

Weir measurements, advantages of 10 

West Branch or Fork. See name of main 
stream. 

West Maui, list of stations on 24-25 

White, G. R.,workof 22 

Willard, C. R., cooperation of 175 

Wood, B. D., work of 22 



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